295 lines
41 KiB
XML
295 lines
41 KiB
XML
<document id="A803E1F57EB687E33E187F14E92AEAE2" ID-DOI="http://dx.doi.org/10.3897/zookeys.860.33597" ID-GBIF-Dataset="c81249cc-265d-41cd-809d-74da9f8324d6" ID-PMC="PMC6656982" ID-Pensoft-Pub="1313-2970-860-67" ID-PubMed="31363344" ID-ZooBank="128BC1830A6A423488931CBD2D2AF962" ModsDocAuthor="" ModsDocDate="2019" ModsDocID="1313-2970-860-67" ModsDocOrigin="ZooKeys 860" ModsDocTitle="A review of gorgonian coral species (Cnidaria, Octocorallia, Alcyonacea) held in the Santa Barbara Museum of Natural History research collection: focus on species from Scleraxonia, Holaxonia, Calcaxonia – Part II: Species of Holaxonia, families Gorgoniidae and Plexauridae" checkinTime="1562310429444" checkinUser="pensoft" docAuthor="Horvath, Elizabeth Anne" docDate="2019" docId="336A751A5926750B32432854D0956D84" docLanguage="en" docName="ZooKeys 860: 67-182" docOrigin="ZooKeys 860" docSource="http://dx.doi.org/10.3897/zookeys.860.33597" docTitle="Muricea fruticosa Verrill 1868" docType="treatment" docVersion="5" lastPageNumber="67" masterDocId="FC39FFCAFFF7185C9E0D0A1A2F0D8028" masterDocTitle="A review of gorgonian coral species (Cnidaria, Octocorallia, Alcyonacea) held in the Santa Barbara Museum of Natural History research collection: focus on species from Scleraxonia, Holaxonia, Calcaxonia - Part II: Species of Holaxonia, families Gorgoniidae and Plexauridae" masterLastPageNumber="182" masterPageNumber="67" pageNumber="67" updateTime="1701315585746" updateUser="plazi">
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<mods:title id="454836310E26A6C8B89C729A9863BECD">A review of gorgonian coral species (Cnidaria, Octocorallia, Alcyonacea) held in the Santa Barbara Museum of Natural History research collection: focus on species from Scleraxonia, Holaxonia, Calcaxonia - Part II: Species of Holaxonia, families Gorgoniidae and Plexauridae</mods:title>
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<mods:namePart id="A9BA5861568971E664A6A00931A6F596">Horvath, Elizabeth Anne</mods:namePart>
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<mods:title id="1FF69EA63C606CE9AB36A21B37066CD8">ZooKeys</mods:title>
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<mods:date id="EF5C4C460FE455A14A3503876A642DCB">2019</mods:date>
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<mods:number id="679DF3A07042B21192CCE6D6D30921FA">860</mods:number>
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<mods:start id="873FBC1037285DBC86D140369BDE70FF">67</mods:start>
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<mods:identifier id="0A5591FEB7E7663AD973410D53A659C9" type="DOI">http://dx.doi.org/10.3897/zookeys.860.33597</mods:identifier>
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<treatment id="336A751A5926750B32432854D0956D84" ID-GBIF-Taxon="158525357" LSID="urn:lsid:plazi:treatment:336A751A5926750B32432854D0956D84" httpUri="http://treatment.plazi.org/id/336A751A5926750B32432854D0956D84" lastPageNumber="67" pageId="0" pageNumber="67">
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<subSubSection id="B124DD016D74C4A40AD175544BF48242" pageId="0" pageNumber="67" type="nomenclature">
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<paragraph id="DC47A188973B04971643F9679D37D709" pageId="0" pageNumber="67">
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<taxonomicName id="AA893D8247BFCBF6463873E679862F4A" ID-CoL="44MS5" authority="Verrill, 1868" authorityName="Verrill" authorityYear="1868" class="Anthozoa" family="Plexauridae" genus="Muricea" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Muricea fruticosa" order="Alcyonacea" pageId="0" pageNumber="67" phylum="Cnidaria" rank="species" species="fruticosa">Muricea fruticosa Verrill, 1868</taxonomicName>
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Figures 43A, B, 44A, B, 45
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<normalizedToken id="83259EA8B38BA94D596F3E0D8C8A3F80" originalValue="A–D">A-D</normalizedToken>
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, 46, 47A, B, 48
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<normalizedToken id="6B51BCB8F6BE5504D9A29AF1777684BC" originalValue="A–E">A-E</normalizedToken>
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</paragraph>
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</subSubSection>
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<subSubSection id="0C08C18D88CB8A209DE173A9A3F12F8C" pageId="0" pageNumber="67" type="reference_group">
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<paragraph id="6B650F540FD8EB152A0E13809527CF01" pageId="0" pageNumber="67">
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<taxonomicName id="D368B8164E3036DBA7D86F079509287D" class="Anthozoa" family="Plexauridae" genus="Muricea" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Muricea fruticosa" order="Alcyonacea" pageId="0" pageNumber="67" phylum="Cnidaria" rank="species" species="fruticosa">Muricea fruticosa</taxonomicName>
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Verrill, 1868a; 1869a: 428-430; pl 7, fig. 2.
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<bibRefCitation id="C5544AF5C24B05257A40E6030AFD5948" pageId="0" pageNumber="67">
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<normalizedToken id="F67BA95046BBC914393A9D68D962157E" originalValue="Kükenthal">Kuekenthal</normalizedToken>
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1919
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</bibRefCitation>
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: 752;
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<bibRefCitation id="02763958AAC7ABD506516F48E062692F" author="Kuekenthal, W" journalOrPublisher="Walter de Gruyter & Company, Berlin" pageId="0" pageNumber="67" title="Gorgonaria. Das Tierreich, Vol. 47." year="1924">1924</bibRefCitation>
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: 142-143.
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<bibRefCitation id="5C1F04E1D5C816DAFCF1FB951266AF40" author="Hardee, M" journalOrPublisher="Bulletin of the Southern California Academy of Sciences" pageId="0" pageNumber="67" pagination="127 - 140" title="Redescription and taxonomic comparison of three eastern Pacific species of Muricea (Cnidaria: Anthozoa)." url="http://biodiversitylibrary.org/page/39810558" volume="95" year="1996">Hardee and Wicksten 1996</bibRefCitation>
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: 129-130.
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<bibRefCitation id="B561AAB0BA6F9451F6BAD73494E529D6" author="Breedy, O" journalOrPublisher="ZooKeys" pageId="0" pageNumber="67" pagination="1 - 69" title="A revision of the genus Muricea Lamouroux, 1821 (Anthozoa, Octocorallia) in the eastern Pacific. Part II." url="https://doi.org/10.3897/zookeys.581.7910" volume="581" year="2016 b">
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Breedy and
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<normalizedToken id="6A04B8636251966D6B7EBB44DE2540BC" originalValue="Guzmán">Guzman</normalizedToken>
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2016b
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||
</bibRefCitation>
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||
: 9-14.
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</paragraph>
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<paragraph id="89380F45B230A2968455244F354D0DBF" pageId="0" pageNumber="67">
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<taxonomicName id="DE50056C31E93C21186529D5C9FDA72B" class="Anthozoa" family="Plexauridae" genus="Muricea" higherTaxonomySource="CoL" infraspecific-rank="var." kingdom="Animalia" lsidName="Muricea fruticosa var. typica" order="Alcyonacea" pageId="0" pageNumber="67" phylum="Cnidaria" rank="variety" species="fruticosa" variety="typica">Muricea fruticosa var. typica</taxonomicName>
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Verrill, 1868a; 1869a: 428-430.
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<bibRefCitation id="17338E7AD75A09F49A5C9D567D63A72C" author="Kuekenthal, W" journalOrPublisher="Walter de Gruyter & Company, Berlin" pageId="0" pageNumber="67" title="Gorgonaria. Das Tierreich, Vol. 47." year="1924">
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<normalizedToken id="03BDD92D0468B8D3185ED8E0B391C838" originalValue="Kükenthal">Kuekenthal</normalizedToken>
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1924
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</bibRefCitation>
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: 142.
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</paragraph>
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<paragraph id="7AA7E94EF061FE79C9C30839CC5EC14B" pageId="0" pageNumber="67">
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<taxonomicName id="1990C20CBF403295219F7E1001349FD8" class="Anthozoa" family="Plexauridae" genus="Muricea" higherTaxonomySource="CoL" infraspecific-rank="var." kingdom="Animalia" lsidName="Muricea fruticosa var. miser" order="Alcyonacea" pageId="0" pageNumber="67" phylum="Cnidaria" rank="variety" species="fruticosa" variety="miser">Muricea fruticosa var. miser</taxonomicName>
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Verrill, 1869a: 430.
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<bibRefCitation id="7D9D0AD4F17DC0C8C30EFBDE6FF79671" pageId="0" pageNumber="67">
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||
<normalizedToken id="52AC94C3DF5AD6901FCC08496B5EFA33" originalValue="Kükenthal">Kuekenthal</normalizedToken>
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||
1919
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</bibRefCitation>
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: 752;
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<bibRefCitation id="504540522B90421D53195F2D521804AB" author="Kuekenthal, W" journalOrPublisher="Walter de Gruyter & Company, Berlin" pageId="0" pageNumber="67" title="Gorgonaria. Das Tierreich, Vol. 47." year="1924">1924</bibRefCitation>
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: 143.
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</paragraph>
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<paragraph id="9F75041A33D86B2A505F2F10F5A08A05" pageId="0" pageNumber="67">
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<taxonomicName id="A4632BA7A19EF33982397376A1103D0C" class="Anthozoa" family="Plexauridae" genus="Thesea" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Thesea crosslandi" order="Alcyonacea" pageId="0" pageNumber="67" phylum="Cnidaria" rank="species" species="crosslandi">Thesea crosslandi</taxonomicName>
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Hickson, 1928: 354-356 (syn. nov.).
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</paragraph>
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<paragraph id="ECE5AB5EB36EA2676E4569AB5C433DA9" pageId="0" pageNumber="67">
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<taxonomicName id="D7224940A438DA9D10C3D94C51D282A6" class="Anthozoa" family="Plexauridae" genus="Pseudothesea" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Pseudothesea crosslandi" order="Alcyonacea" pageId="0" pageNumber="67" phylum="Cnidaria" rank="species" species="crosslandi">Pseudothesea crosslandi</taxonomicName>
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(Hickson, 1928).
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<bibRefCitation id="11A8FFAD188D751EF2B54A7192EF70C3" author="Stiasny, G" journalOrPublisher="Videnskavelige Meddelelser fra den Dansk Naturhistoriske Forening" pageId="0" pageNumber="67" pagination="59 - 103" title="Gorgonaria von Panama. Aus der Sammlung Dr Theodor Mortensen, Zoologisk Museum, Kopenhagen." volume="107" year="1943">Stiasny 1943</bibRefCitation>
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: 64-66 (syn. nov.)
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</paragraph>
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</subSubSection>
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<subSubSection id="74E50EFDF76585CF8E318E975D1766BD" pageId="0" pageNumber="67" type="type locality">
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<paragraph id="57CBD1C50350C23AE2A8DAC9E99F87D4" pageId="0" pageNumber="67">Type locality.</paragraph>
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<paragraph id="C1CAE4797FA2CEFA9C39BDCFAB9EF28B" pageId="0" pageNumber="67">(Lectotype) Panama, Pearl Islands, 11-14 m.</paragraph>
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</subSubSection>
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<subSubSection id="A4E4589577219DBDAAD430088956B914" pageId="0" pageNumber="67" type="type specimens">
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<paragraph id="9067425F36C760B45C8EF69256B54F4F" pageId="0" pageNumber="67">Type specimens.</paragraph>
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<paragraph id="C5276DC23E45736306066E233A21B6AA" pageId="0" pageNumber="67">Lectotype YPM 1574C [dry]; additionally, YPM 1660 [wet], YPM 1792 (fragment from Lectotype) [dry], and YPM 3067C [dry], are all listed as Syntypes. There are several specimens listed as Syntypes at NMNH: for instance, USNM 52292 [dry], with SEM images from stub #239. Syntype material at NMNH was examined.</paragraph>
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</subSubSection>
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<subSubSection id="14424B569F5459D3C1C8EE7B1483A8EF" pageId="0" pageNumber="67" type="materials_examined">
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<paragraph id="3164668304BF37320FB0377C459842E8" pageId="0" pageNumber="67">Material examined.</paragraph>
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<paragraph id="6195F5D5DA345CC85D5C98EE6584EFF3" pageId="0" pageNumber="67">~14 lots (see Appendix 1: List of material examined).</paragraph>
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</subSubSection>
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<subSubSection id="AF7E56634DE1D25EC097C5DDCCAE9770" pageId="0" pageNumber="67" type="description">
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<paragraph id="0E44836B24C8F9026CCE84A002D94D1F" pageId="0" pageNumber="67">Description.</paragraph>
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<paragraph id="13D7DB039AE1A92DAC87AC826E870555" pageId="0" pageNumber="67">
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Colony (Figures 43A, 46) fairly large; dense, abundant branching; not reticulate. Branching irregularly dichotomous (also seen as cespitose/fruticose, tightly bush-shaped variant, with rather small, somewhat clavate branchlets outside California Bight; variant description not discussed here). Prominent, spreading, spinose calyces create rough texture to branches of colony. Colony (of Figure 46) very bushy; not in one plane. Colony stands up to three feet (90 cm) tall (Figure 43A), but usually shorter (30 cm). Main stem stout, short, arising from large, irregular base, usually dividing at once into several large, thick, unequal main branches, rapidly dividing and subdividing in irregular manner; branching extensive, such that main branches soon lost among crowded, crooked secondary branches. Branches and branchlets usually not more than 7.0-12 mm apart; branching can be in one plane, but not always. Small branches near ends often divide in irregular dichotomous manner, sometimes coalesce; very numerous, nearly equal in size, usually distinctly curved and crooked, spreading out at origin with a broad curve. Terminal branchlets short, 7.0-40 mm long, 2.0-3.0 mm thick, often curved, not tapering, either ending evenly or clavately, with obtusely rounded ends. In overall appearance, can look much like the colony shape of
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<taxonomicName id="33D0C0FBC7FE6D5467DE2212DD9C0E1C" lsidName="M. californica" pageId="0" pageNumber="67" rank="species" species="californica">M. californica</taxonomicName>
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(perhaps reflective of similar environmental conditions). Color of living colony generally brown (darker) with white polyps; mostly deep reddish orange, rusty-brown; branchlet tips and calyces deep reddish brown, color generally fading to yellowish brown in proximal portion of branchlets, fading into light yellow, tinged with brown in main branches and trunk. Dry specimens orange-rusty brown, while polyps are pure white, situated on upper side of calyces; near distal end, aperture filled with yellow polyp sclerites, arising from bases of tentacles. Horn-like axis yellowish wood-brown at base and in larger branches (
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<bibRefCitation id="991150FD792ED464C4FFB9B315E6367A" author="Hardee, M" journalOrPublisher="Bulletin of the Southern California Academy of Sciences" pageId="0" pageNumber="67" pagination="127 - 140" title="Redescription and taxonomic comparison of three eastern Pacific species of Muricea (Cnidaria: Anthozoa)." url="http://biodiversitylibrary.org/page/39810558" volume="95" year="1996">Hardee and Wicksten 1996</bibRefCitation>
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stated axis dark brown at base); darker reddish brown, translucent in smaller branches; light amber-yellow, translucent, slender up into branchlet tips. Calyces close together, but not overlapping, spreading outward and upward, 45 degrees from branch when closed, nearly 90 degrees with polyp extended; prominent, with conspicuous shelves opening distally, conical to columnar, larger and closer (1.0 mm) toward tips (Figure 43B), approximately as high (1.0-2.0 mm) as they are broad (1.0-1.5 mm); on larger branches low, rounded, without prolonged lower lip, better developed than at base where they are flatter, small and spread apart (2.0 mm). Those better developed have an obvious lower lip, sharp and long with very large, long, stout sclerites as spindles (some of which approximately as long as the calyces) which lie parallel to each other, projecting past upper margin of lower lip, giving colony a prickly feel when touched; upper lip small or barely noticeable. As calyces do not overlap, outer, thin coenenchyme easily seen lying between calyces, characterized by extremely large, stout, sclerites, visible to naked eye, and curving around them, often larger than calyces; these sclerites may be missing near base of colony or in poorly preserved specimens. Sclerites (Figure 44A, B) vary in color from brownish yellow and yellowish white to deep reddish brown. Largest sclerites (of outer coenenchyme), reddish orange-brown in color, up to 3.0 mm long; several shapes visible (Figures 44A, B, 45, 47A, B, 48
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<normalizedToken id="FA994DDD91EF9E1DDCC969123A92715D" originalValue="A–E">A-E</normalizedToken>
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). One shape, very distinct, mostly stout, blunt and truncate, almost rectangular; longer, large, massive ones rather thick in middle, tapering somewhat abruptly at ends, densely, evenly covered by small tubercles (Verrill 1868 stated longer ones covered by small, sharp spinules on one side; other parts covered with crowded rough warts; these I refer to as tardigrade-like sclerites; Figures 44A, B, 45D, 47B, 48E). Second largest form irregularly fusiform, covered with tubercles; third form (Figure 48D) hook-shaped either on one end, both ends curving inward, or one end forked, the other tapering to a point; the latter often covered on ends with small, sparse, occasionally spiny tubercles, becoming more densely covered with tubercles toward the center, usually found around base of calyces. Medium-sized sclerites (~1.0 mm) more regular, fat (stout) in middle usually tapering to acute points; one side or one end covered with quite large, very sharp, simple projections, other side with densely crowded, rough microtuberculate warts. Sclerites of inner coenenchyme distinctly smaller, color ranging from yellow to white, fusiform, slender, often tapering to sharp point, covered with distinctly raised tubercles or warts (Figure 48B). Calyx sclerites long, up to 1.6 mm, very irregular and oddly shaped, mostly fusiform, one end often forking slightly or very noticeably, evenly covered with distinct tubercles, with some unilaterally spinose projections.
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</paragraph>
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<caption id="942F38DC272D43B8FF51A35B1A958558" pageId="0" pageNumber="67">
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<paragraph id="4645D7D80B756B975985D5EE1C00D045" pageId="0" pageNumber="67">
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Figure 43.
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<taxonomicName id="F38C05FA445D43C5BC3809D55EB97EFF" class="Anthozoa" family="Plexauridae" genus="Muricea" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Muricea fruticosa" order="Alcyonacea" pageId="0" pageNumber="67" phylum="Cnidaria" rank="species" species="fruticosa">Muricea fruticosa</taxonomicName>
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, SBMNH 422430 (as seen in California waters). Colony shows pale base area tending to darker, colored branch tips. A Whole colony, 15 cm tall
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<normalizedToken id="4D454E669DD93593AD87DAA50F5F408D" originalValue="×">x</normalizedToken>
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11.0-11.5 cm broad B Closer view of branch tip showing conical calyces forming shelf-like projections off branch surface.
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</paragraph>
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</caption>
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<caption id="D0B423CB9A171CD1061B0DD5F93AB838" pageId="0" pageNumber="67">
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<paragraph id="0477E3F8A71095CA3920961D9D84198C" pageId="0" pageNumber="67">
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Figure 44.
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<taxonomicName id="E5576D5D5923FFD9B71682FCBB2E7224" class="Anthozoa" family="Plexauridae" genus="Muricea" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Muricea fruticosa" order="Alcyonacea" pageId="0" pageNumber="67" phylum="Cnidaria" rank="species" species="fruticosa">Muricea fruticosa</taxonomicName>
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, SBMNH 265940, light microscopy arrays. A, B 4
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<normalizedToken id="85DCDEC36EF6857EBFB2F7A438F6B244" originalValue="×">x</normalizedToken>
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magnification, with diverse sclerites shown for the species. Of particular interest are prominent sclerites, indicated by arrows, in B (the tardigrade-like form mentioned in text description). In B the lower, middle sclerite measures some 1300
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<normalizedToken id="0B7891FC13CBAD15F2CB548D796A9BB7" originalValue="µm">µm</normalizedToken>
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in length, the one up and to the right of that measures 1133
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<normalizedToken id="75BF34C682DD9924D15F558FBBC58DA8" originalValue="µm">µm</normalizedToken>
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; thinner spindles measure between 200-300
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<normalizedToken id="C620152D5086F9AC259A9EDEF6D791A1" originalValue="µm">µm</normalizedToken>
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in length.
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</paragraph>
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</caption>
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<caption id="64B6AAB2A528C184590642CCB8C2C423" pageId="0" pageNumber="67">
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<paragraph id="870182AE2D1C2CCB0A62A1078F8BBA5B" pageId="0" pageNumber="67">
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Figure 45.
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<taxonomicName id="31D436067D7AEBED3ABAD5665A8039C0" class="Anthozoa" family="Plexauridae" genus="Muricea" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Muricea fruticosa" order="Alcyonacea" pageId="0" pageNumber="67" phylum="Cnidaria" rank="species" species="fruticosa">Muricea fruticosa</taxonomicName>
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, SBMNH 265940, SEM image. A, D Calycular and coenenchymal unilateral spinous spindles B, C Axial sheath A Large nudibranch-type sclerites B Typical spindle C Smaller spindles D tardigrade-type spindles.
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</paragraph>
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</caption>
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<paragraph id="7D2807CD326584DBD92B3BA2E3C49533" pageId="0" pageNumber="67">
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Generally, sclerites shown in
|
||
<bibRefCitation id="C277709FF5B95D8780CA90E4ABB5F790" author="Hardee, M" journalOrPublisher="Bulletin of the Southern California Academy of Sciences" pageId="0" pageNumber="67" pagination="127 - 140" title="Redescription and taxonomic comparison of three eastern Pacific species of Muricea (Cnidaria: Anthozoa)." url="http://biodiversitylibrary.org/page/39810558" volume="95" year="1996">Hardee and Wicksten (1996)</bibRefCitation>
|
||
appear to have extremely dense coverings of warts and bumps, the latter smallish in size. As well, they seem to cover a greater portion of the surface area of the sclerite as compared to those seen in drawings for sclerites of
|
||
<taxonomicName id="3F43A51E38C70521D2B0D86621BDF889" lsidName="M. californica" pageId="0" pageNumber="67" rank="species" species="californica">M. californica</taxonomicName>
|
||
. Examinations of sclerites, for specimens identified as this species, reveal that sclerites can have flame-like teeth, these running almost the full length of the sclerite, on a side (what are termed nudibranch sclerites (Figure 45A), as those of
|
||
<bibRefCitation id="4EFE0B5FAC146BA06285CE875309B87B" pageId="0" pageNumber="67">Matamoros-Rosales (1984)</bibRefCitation>
|
||
, rather than at an end such as seen in a torch. Very largest sclerites (tardigrade-like) rounded, densely warted, with projections coming off one of the longer sides, creating the appearance of legs and claws (like those of a tardigrade; Figures 44, 45D, some in Fig. 48E). Generally, sclerites have very dense tubercle coverings. The largest sclerites in this species are decidedly larger than those of
|
||
<taxonomicName id="9C232CD8162BF87B466CE8EE37DB73B6" lsidName="M. californica" pageId="0" pageNumber="67" rank="species" species="californica">M. californica</taxonomicName>
|
||
; this will be the case despite what might have been concluded from having only looked at polyp color. This agrees with data provided in both
|
||
<bibRefCitation id="B9F869278B26AD445E5242B1C05535ED" pageId="0" pageNumber="67">Harden (1969)</bibRefCitation>
|
||
and
|
||
<bibRefCitation id="873D5296B460E4B988027978A7DA900B" pageId="0" pageNumber="67">Grigg (1970)</bibRefCitation>
|
||
.
|
||
</paragraph>
|
||
<paragraph id="A957013189141EB31DD1EC5DEF70BA49" pageId="0" pageNumber="67">
|
||
The colony shown in Figure 46 displays a few odd features, warranting further mention. Branching primarily pinnate to dichotomous. Colony measures ~7.5 cm tall, 4.0 cm wide. Slightly central main stem runs entire height of colony, with some slight curving laterally in random sections of stem; multiple branches all begin directly above or from base, many coming off of main stem. Branches often angle out a very short distance then curve upwards. Primary branches average 3.0-4.0 mm long, diameter ~1.0-2.0 mm (excluding calyces); diameter appears consistent from axillary branch points to branch tips. Calyces very columnar (1.0-2.0 mm wide, ~3.0 mm tall), heavily covered with longitudinally-oriented sclerites; polyps, many partially to fully extended from calyces, cream or light yellow; appear smooth. Calyces on all sides of branches, in some areas of colony very dense, in other areas calyces with some little distance between themselves, where sclerites can be seen on coenenchyme surface, lying sometimes longitudinally with the branches, sometimes not; latter more transverse (or oriented slightly in a triangular pattern) at base of calyces; calyces cover entire colony, right down onto coenenchymal surface of
|
||
<normalizedToken id="7C476C64ACC8876E1437142D59CA1DF0" originalValue="colony’s">colony's</normalizedToken>
|
||
base. Calyces generally appear distinct reddish brown due to large, conspicuous sclerites. Color of colony generally darker distally, reddish brown, grading from free branch tips of colony to much lighter yellow or cream proximally, in stem and base (due to light-colored sclerites, usually small in size); polyps appear very light yellow, cream to white. Majority of calyx-bearing polyps appear such that they give colony an overall swollen appearance (as though branches of colony are covered with small, round grapes). This is the most unique feature of this colony; this may reflect an active reproductive state at the time of collection;
|
||
<normalizedToken id="55975F7EC09375B5415C7BECA5FDE080" originalValue="specimen’s">specimen's</normalizedToken>
|
||
reproductive condition is still a question. Some calyces, scattered on all branches, tend to curve upwards slightly. The sclerites shown in both light microscopy (Figure 47A, B) and SEM (Figure 48
|
||
<normalizedToken id="FE610EBA73529C9266937C44EA9B65F5" originalValue="A–E">A-E</normalizedToken>
|
||
) in some ways match those for the colony of Figures 43-45, and yet in other ways do not clearly point to it being the same species. Based on this single specimen in the SBMNH collection (SBMNH 265945), from Long Beach, California, it requires further study. The biology of this colony, and its swollen appearance, has not been further explored or explained to date, other than to indicate that specimen was collected from very far into the back channels of Long Beach Harbor, quite a distance from open water (D Cadien, LACSD, pers. comm.).
|
||
</paragraph>
|
||
<caption id="D5D71BA1B06E1F81798FA18D0A02EF32" pageId="0" pageNumber="67">
|
||
<paragraph id="6B6934067E009D4F9A54C87D62B35D29" pageId="0" pageNumber="67">
|
||
Figure 46.
|
||
<taxonomicName id="16AE0E7EDCF03496D17FAA55704031EE" class="Anthozoa" family="Plexauridae" genus="Muricea" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Muricea fruticosa" order="Alcyonacea" pageId="0" pageNumber="67" phylum="Cnidaria" rank="species" species="fruticosa">Muricea fruticosa</taxonomicName>
|
||
, SBMNH 265945. Colony measures ~7.5 cm
|
||
<normalizedToken id="F88AE603CCA2562CC2D707EFEF339233" originalValue="×">x</normalizedToken>
|
||
4.0 cm. Visible in image is the pale cream/yellow base/lower trunk; trunk intensifies and darkens to brownish orange towards branch tips. Notice swollen appearance of branch tips.
|
||
</paragraph>
|
||
</caption>
|
||
<caption id="7F09D579426E56B39AAAA1F882BC538E" pageId="0" pageNumber="67">
|
||
<paragraph id="69D3D0314AAF1BF2327BACDBC99FB0EC" pageId="0" pageNumber="67">
|
||
Figure 47.
|
||
<taxonomicName id="AD4AF481B5583A59A3BBA6A33930BD70" class="Anthozoa" family="Plexauridae" genus="Muricea" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Muricea fruticosa" order="Alcyonacea" pageId="0" pageNumber="67" phylum="Cnidaria" rank="species" species="fruticosa">Muricea fruticosa</taxonomicName>
|
||
, SBMNH 265945, light microscopy arrays. A 4
|
||
<normalizedToken id="76930C252350E6235B33995359A3096F" originalValue="×">x</normalizedToken>
|
||
magnification, showing large spindles with pronounced conical spinules; central, vertically aligned one, measures 650
|
||
<normalizedToken id="7A8E5393B51CAA4AA42088D92E62583E" originalValue="µm">µm</normalizedToken>
|
||
B 10
|
||
<normalizedToken id="D655DDBC3F6EDF2CA4442347E2F7C58D" originalValue="×">x</normalizedToken>
|
||
magnification of similar large spindles. Sclerite denoted by arrow is 0.875 mm in length, with a maximum length for this spindle form ~1.0 mm.
|
||
</paragraph>
|
||
</caption>
|
||
<caption id="2792C711CBF7240D965BD3A850DDAC01" pageId="0" pageNumber="67">
|
||
<paragraph id="C0573D8B439C14F04FA4101BF3FF3913" pageId="0" pageNumber="67">
|
||
Figure 48.
|
||
<taxonomicName id="5121AD6605A1B013E503AC83A1FBDD74" class="Anthozoa" family="Plexauridae" genus="Muricea" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Muricea fruticosa" order="Alcyonacea" pageId="0" pageNumber="67" phylum="Cnidaria" rank="species" species="fruticosa">Muricea fruticosa</taxonomicName>
|
||
, SBMNH 265945, SEM image. A Possible anthocodial sclerites B Spindles from the axial sheath C An unusual quadriradiate spindle from coenenchyme D Calycular/coenenchymal unilateral spinous spindles E Prominent calycular/coenenchymal tardigrade-type spindles.
|
||
</paragraph>
|
||
</caption>
|
||
</subSubSection>
|
||
<subSubSection id="2E189D070518116BC2E2B802EB518823" pageId="0" pageNumber="67" type="etymology">
|
||
<paragraph id="F412BD5CD365B5D298052EA858DD808B" pageId="0" pageNumber="67">Etymology.</paragraph>
|
||
<paragraph id="6F0AF4E07B241A9FD3E706CF50AB2A30" pageId="0" pageNumber="67">Latin, fruticosu- meaning shrubby (bush-like); Verrill gave no specifics as to the derivation of the species name.</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="D97C421131BA6FEF44D5A06A0F99B0E5" pageId="0" pageNumber="67" type="common name">
|
||
<paragraph id="8F76A96CECD4817121C23EBE73B871D2" pageId="0" pageNumber="67">Common name.</paragraph>
|
||
<paragraph id="41BBA775784F06E5C6880D54CB7BDBFD" pageId="0" pageNumber="67">Brown gorgonian; Fruitful purple one; Bushy rust gorgonian; Robust gorgonian (as indicated in various field/diving guides).</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="7D7074E124F044F0513C979F122FC9B9" pageId="0" pageNumber="67" type="distribution">
|
||
<paragraph id="B144EDEAC8D3DF626976A43872B053FB" pageId="0" pageNumber="67">Distribution.</paragraph>
|
||
<paragraph id="192B2DC00AB0FDDEBAA8A4C92968608E" pageId="0" pageNumber="67">Potentially from Panama, up along California coast, perhaps as far north as Los Angeles County, California, with maximum, though infrequent, northern limit Point Conception, California. In a list of California sites, showing depth ranges, the following are indicated: Mainland: Point Loma: 5-14 m; La Jolla: 3-12 m; (USNM 50192 was collected at 11 m at La Jolla, in the Torrey Pines kelp bed, 5 miles north of Scripps Institution); Newport Beach: 0-12 m; San Pedro: 0-15 m; Santa Barbara: 5-8 m; Naples Reef: 5-11 m; Islands: Coronados Islands: 2-12 m; San Clemente Island: 21 m; Santa Catalina Island: 5-18 m.</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="39872F2330CE23DBEA742B911E8C6C2F" pageId="0" pageNumber="67" type="biology_ecology">
|
||
<paragraph id="D2EE031CECD05D1A140B1799D1A75190" pageId="0" pageNumber="67">Biology.</paragraph>
|
||
<paragraph id="775F6EE1DD359F6F118868806F5B0E34" pageId="0" pageNumber="67">
|
||
Seen more commonly in southern areas of California kelp beds (Ricketts, 4th Ed. 1968); also, offshore pilings. Seen as well in lowest intertidal zone, outer Los Angeles Harbor; one of the most common species in southern California, in 15-30 m depths, Point Conception to Baja California (
|
||
<bibRefCitation id="2A0601D6BDA382FC1C57EAF52A74C63C" author="Grigg, RW" journalOrPublisher="Ecology" pageId="0" pageNumber="67" pagination="278 - 290" title="Population dynamics of two gorgonian corals." url="https://doi.org/10.2307/1935603" volume="58" year="1977">Grigg 1977</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="B285F4B77EFAB1C88D9B2ED131358811" author="Gotshall, DW" journalOrPublisher="Sea Challengers, Monterey" pageId="0" pageNumber="67" title="Guide to Marine Invertebrates: Alaska to Baja California." year="1994">Gotshall 1994</bibRefCitation>
|
||
,
|
||
<bibRefCitation id="8CB762E4C021AFBBC79A77D1D7ED90EF" author="Gotshall, DW" journalOrPublisher="Sea Challengers-Shoreline Press, Santa Barbara" pageId="0" pageNumber="67" title="Guide to Marine Invertebrates: Alaska to Baja California (2 nd edn)." year="2005">2005</bibRefCitation>
|
||
). Both this and
|
||
<taxonomicName id="9E03AECE60A2DC00912C99FDD1CF135C" lsidName="M. californica" pageId="0" pageNumber="67" rank="species" species="californica">M. californica</taxonomicName>
|
||
seem to prefer subtidally occurring solid substrata at depths between 1.0-30 m (
|
||
<bibRefCitation id="BF7060B91EB84F4370F1D2133F1DACED" author="Grigg, RW" journalOrPublisher="Ecology" pageId="0" pageNumber="67" pagination="278 - 290" title="Population dynamics of two gorgonian corals." url="https://doi.org/10.2307/1935603" volume="58" year="1977">Grigg 1977</bibRefCitation>
|
||
).
|
||
<bibRefCitation id="547048C765E89FE57DD1A8320812182B" author="Lissner, AL" journalOrPublisher="Bulletin of the Southern California Academy of Sciences" pageId="0" pageNumber="67" pagination="87 - 101" title="Deep-water biological assemblages of a hard-bottom bank-ridge complex of the Southern California Continental Borderland." volume="85" year="1986">Lissner and Dorsey (1986)</bibRefCitation>
|
||
reported that while this species is common around the California Channel Islands and rocky areas of the mainland, it is conspicuously absent on the Tanner and Cortes Banks and the Santa Rosa - Cortes Ridge. Grigg (anecdotal communication) reported that populations of
|
||
<taxonomicName id="44560A1CD7AAF33CFC6B9E282DD4FCF4" class="Anthozoa" family="Plexauridae" genus="Muricea" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Muricea" order="Alcyonacea" pageId="0" pageNumber="67" phylum="Cnidaria" rank="genus">Muricea</taxonomicName>
|
||
may be limited by cold water and/or poor dispersal abilities of the larvae.
|
||
<bibRefCitation id="A5744A8BED21D035250FA920CCD424BB" author="Grigg, RW" journalOrPublisher="Ecology" pageId="0" pageNumber="67" pagination="876 - 881" title="Growth rings: annual periodicity in two gorgonian corals." url="https://doi.org/10.2307/1934424" volume="55" year="1974">Grigg (1974)</bibRefCitation>
|
||
stated that this species is ca. one-tenth as abundant as
|
||
<taxonomicName id="C5259161031C210D747195A90C3AE682" lsidName="M. californica" pageId="0" pageNumber="67" rank="species" species="californica">M. californica</taxonomicName>
|
||
off La Jolla. Based on work done by Grigg, it was estimated that a colony 30 cm high is ~20 years old. As very few colonies are seen larger than that, few colonies likely exceed this age. Mortality attributed mostly to abrasion, occurring when particulate matter is suspended in the water during periods of high waves and by smothering coming from accumulations of sand. One untitled and unpublished identification guide stated that colonies are able to survive in some of the most polluted near shore waters, as well as uncontaminated offshore waters. It appears this species is immune to encrustations known to cause mortality in
|
||
<taxonomicName id="0D12A7F686E04563FF3268EE0C6F15E5" lsidName="M. californica" pageId="0" pageNumber="67" rank="species" species="californica">M. californica</taxonomicName>
|
||
. (SBMNH 422390, collected by MacGinitie in Newport Bay, if indeed this
|
||
<normalizedToken id="B300230FFE976521EC5C2CBF975B1C6A" originalValue="species–original">species-original</normalizedToken>
|
||
identification indicated it was, based on white polyps, but sclerites do not support the
|
||
<normalizedToken id="2357BB32FF7683D81FD0BCDBE443FD42" originalValue="identification–does">identification-does</normalizedToken>
|
||
have several galls produced by an acorn-type barnacle, on bare axis as well as on an area covered by coenenchyme.) Apparently fed upon by only one species of fish, the Garibaldi
|
||
<taxonomicName id="8906FCBDBE4FE467626B3CBE22148616" family="Pomacentridae" genus="Hypsypops" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Hypsypops rubicunda" order="Perciformes" pageId="0" pageNumber="67" phylum="Chordata" rank="species" species="rubicunda">Hypsypops rubicunda</taxonomicName>
|
||
.
|
||
<bibRefCitation id="6507C468D0D4B63259ECFF8765A13071" author="Grigg, RW" journalOrPublisher="Ecology" pageId="0" pageNumber="67" pagination="876 - 881" title="Growth rings: annual periodicity in two gorgonian corals." url="https://doi.org/10.2307/1934424" volume="55" year="1974">Grigg (1974)</bibRefCitation>
|
||
calculated that between 10% and 15% of annual growth of this species and
|
||
<taxonomicName id="62CD9072BBC6EA8FB7F4B02950C39ED9" lsidName="M. californica" pageId="0" pageNumber="67" rank="species" species="californica">M. californica</taxonomicName>
|
||
is cropped by Garibaldi predation.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="9FC467FCD57DCA3F2DFB8A0CB703B208" pageId="0" pageNumber="67" type="remarks">
|
||
<paragraph id="9697902D10496CCEF411E9A083212841" pageId="0" pageNumber="67">Remarks.</paragraph>
|
||
<paragraph id="1322406C232532B712ED840125B1C97B" pageId="0" pageNumber="67">
|
||
Gift of FH Bradley; collected below low, low-water mark. Panama and (?) Pearl Islands, 6-8 fm (11-15 m) (
|
||
<bibRefCitation id="19444BF111B054CD5C7EDE9815C6178C" pageId="0" pageNumber="67">Verrill 1869a</bibRefCitation>
|
||
). Identified as
|
||
<taxonomicName id="C08C1DA8ABAD7293893E18DCF7D1FE43" class="Anthozoa" family="Plexauridae" genus="Muricea" higherTaxonomySource="CoL" infraspecific-rank="var." kingdom="Animalia" lsidName="Muricea fruticosa var. typica" order="Alcyonacea" pageId="0" pageNumber="67" phylum="Cnidaria" rank="variety" species="fruticosa" variety="typica">Muricea fruticosa var. typica</taxonomicName>
|
||
(?).
|
||
</paragraph>
|
||
<paragraph id="040B3829B8DE5AA0031AE80F5C392868" pageId="0" pageNumber="67">
|
||
There are two specimens at NMNH identified as this species, with SEM images: USNM 57171, SEM 237-238 (label reads
|
||
<normalizedToken id="741AAF02CD96AAE183103D2916B982C8" originalValue="‘Albatross’">'Albatross'</normalizedToken>
|
||
28-29) and also, "
|
||
<taxonomicName id="1826C0B4F844A3DF9D9AF28642785638" class="Anthozoa" family="Plexauridae" genus="Muricea" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Muricea fruticosa" order="Alcyonacea" pageId="0" pageNumber="67" phylum="Cnidaria" rank="species" species="fruticosa">Muricea fruticosa</taxonomicName>
|
||
Verrill," collected by Limbaugh, from St. (Cape) Lucas Canyon, SEM image 999. NMNH has an additional lot (USNM 52486), collected at Point Vicente, California, along with material in the
|
||
<normalizedToken id="E760BA68211618327FB3B813F684E5F3" originalValue="“Limbaugh”">"Limbaugh"</normalizedToken>
|
||
Collection, which could well be this species, having been collected from the following locations (multiple lots): from California, at Huntington Beach Gas & Electric Steam Plant discharge pipe; from Baja, at Turtle Bay.
|
||
</paragraph>
|
||
<paragraph id="8FFB080EE78E3D3E529D64F4E0F25875" pageId="0" pageNumber="67">
|
||
For all colonies of
|
||
<taxonomicName id="16BA413DD9C227622899258D4989C729" class="Anthozoa" family="Plexauridae" genus="Muricea" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Muricea" order="Alcyonacea" pageId="0" pageNumber="67" phylum="Cnidaria" rank="genus">Muricea</taxonomicName>
|
||
found in the California Bight, there is the possibility of other species in the genus not previously reported as appearing in the Bight, which may have very similar shape, etc. to the commonly recognized species described here. Perhaps there are new, undescribed species. It may well be that previously described species other than the standards make appearances in the Bight, and do so more often than previously thought. This possibility is supported by the fact that climatic factors can greatly expand ranges, even if only temporarily. A number of Mexican species may occasionally (or more often) make an appearance in the California Bight during certain substantial climatic/atmospheric events, such as an El
|
||
<normalizedToken id="4BB8F5354354287A920ABCF240BB6935" originalValue="Niño">Nino</normalizedToken>
|
||
.
|
||
</paragraph>
|
||
<paragraph id="8D800F7B81A652A7C1F7E967C4834EED" pageId="0" pageNumber="67">
|
||
This conclusion has some support;
|
||
<bibRefCitation id="16F923C26702A28B8E63383F79DA1443" author="Hardee, M" journalOrPublisher="Bulletin of the Southern California Academy of Sciences" pageId="0" pageNumber="67" pagination="127 - 140" title="Redescription and taxonomic comparison of three eastern Pacific species of Muricea (Cnidaria: Anthozoa)." url="http://biodiversitylibrary.org/page/39810558" volume="95" year="1996">Hardee and Wicksten (1996)</bibRefCitation>
|
||
in their closing paragraphs state "(a)lthough our material could be identified as (simply)
|
||
<taxonomicName id="16C42EBA876138EE93E44C0A900BB721" lsidName="M. fruticosa" pageId="0" pageNumber="67" rank="species" species="fruticosa">M. fruticosa</taxonomicName>
|
||
and
|
||
<taxonomicName id="00A309A24C0CA9B44BE85246AD688F31" lsidName="M. californica" pageId="0" pageNumber="67" rank="species" species="californica">M. californica</taxonomicName>
|
||
, it is possible that other species of
|
||
<taxonomicName id="73722C1DB749676DAAB1B92655D62012" class="Anthozoa" family="Plexauridae" genus="Muricea" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Muricea" order="Alcyonacea" pageId="0" pageNumber="67" phylum="Cnidaria" rank="genus">Muricea</taxonomicName>
|
||
occur in southern California." They recommended that a comparison of a series of specimens be made. This would help to clarify which previously described species are valid and which are "merely growth forms." I agree with that recommendation. Fresh
|
||
<taxonomicName id="8B313CC033549C50B256198276DEFE34" class="Anthozoa" family="Plexauridae" genus="Muricea" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Muricea" order="Alcyonacea" pageId="0" pageNumber="67" phylum="Cnidaria" rank="genus">Muricea</taxonomicName>
|
||
colonies, collected in a very intentional manner, from south to north, both within the Bight and to the south outside the Bight, must be done; that collection process is underway, with the help of the Santa Barbara Museum of Natural
|
||
<normalizedToken id="70C57A56A8A3AB8943A219B4FC60284F" originalValue="History’s">History's</normalizedToken>
|
||
Sea Center staff, staff of the Aquarium of the Pacific in Long Beach, California and staff of both the Los Angeles (LACSD) and Orange County (OCSD) Sanitation Districts. With the dramatic weather events we have recently experienced here in California, it will be interesting to see whether other species of the genus are making an appearance, for any length of time.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |