196 lines
19 KiB
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196 lines
19 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/zookeys.94.794" ID-GBIF-Dataset="bbfece5e-665a-4062-92ec-3fe8b059e0bd" ID-PMC="PMC3095178" ID-Pensoft-Pub="1313-2970-94-1" ID-PubMed="21594074" ModsDocAuthor="" ModsDocDate="2011" ModsDocID="1313-2970-94-1" ModsDocOrigin="ZooKeys 94" ModsDocTitle="Marine Gastrotricha of the Near East: 1. Fourteen new species of Macrodasyida and a redescription of Dactylopodola agadasys Hochberg, 2003" checkinTime="1451250463722" checkinUser="pensoft" docAuthor="Hummon, William D." docDate="2011" docId="6A9041E6F211C0D602616E449398F86F" docLanguage="en" docName="ZooKeys 94: 1-59" docOrigin="ZooKeys 94" docSource="http://dx.doi.org/10.3897/zookeys.94.794" docTitle="Dactylopodola agadasys Hochberg 2003" docType="treatment" docVersion="4" lastPageNumber="12" masterDocId="7D5E8574FF915668FF877704990AFFF6" masterDocTitle="Marine Gastrotricha of the Near East: 1. Fourteen new species of Macrodasyida and a redescription of Dactylopodola agadasys Hochberg, 2003" masterLastPageNumber="59" masterPageNumber="1" pageNumber="9" updateTime="1668168971445" updateUser="ExternalLinkService">
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<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo>
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<mods:title>Marine Gastrotricha of the Near East: 1. Fourteen new species of Macrodasyida and a redescription of Dactylopodola agadasys Hochberg, 2003</mods:title>
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</mods:titleInfo>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Hummon, William D.</mods:namePart>
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</mods:name>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:relatedItem type="host">
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<mods:titleInfo>
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<mods:title>ZooKeys</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2011</mods:date>
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<mods:detail type="volume">
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<mods:number>94</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>1</mods:start>
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<mods:end>59</mods:end>
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</mods:extent>
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</mods:part>
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</mods:relatedItem>
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<mods:location>
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<mods:url>http://dx.doi.org/10.3897/zookeys.94.794</mods:url>
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</mods:location>
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<mods:classification>journal article</mods:classification>
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<mods:identifier type="DOI">http://dx.doi.org/10.3897/zookeys.94.794</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-94-1</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="159365025" LSID="urn:lsid:plazi:treatment:6A9041E6F211C0D602616E449398F86F" httpUri="http://treatment.plazi.org/id/6A9041E6F211C0D602616E449398F86F" lastPageId="11" lastPageNumber="12" pageId="8" pageNumber="9">
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<subSubSection pageId="8" pageNumber="9" type="nomenclature">
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<paragraph pageId="8" pageNumber="9">
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<taxonomicName LSID="http://species-id.net/wiki/Dactylopodola_agadasys" authority="Hochberg, 2003" authorityName="Hochberg" authorityYear="2003" family="Dactylopodolidae" genus="Dactylopodola" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dactylopodola agadasys" order="Macrodasyida" pageId="8" pageNumber="9" phylum="Gastrotricha" rank="species" species="agadasys">Dactylopodola agadasys Hochberg, 2003</taxonomicName>
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Figure 4
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</paragraph>
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</subSubSection>
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<subSubSection pageId="8" pageNumber="9" type="reference_group">
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<paragraph pageId="8" pageNumber="9">
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<taxonomicName family="Dactylopodolidae" genus="Dactylopodola" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dactylopodola agadasys" order="Macrodasyida" pageId="8" pageNumber="9" phylum="Gastrotricha" rank="species" species="agadasys">Dactylopodola agadasys</taxonomicName>
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Hochberg, 2003: p. 41; Figs. 5-6. -- new species.
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<bibRefCitation author="Hummon, WD" journalOrPublisher="Meiofauna Marina" pageId="35" pageNumber="36" pagination="23 - 26" title="Video database for described species of marine Gastrotricha." volume="14" year="2005">Hummon et al. (2005</bibRefCitation>
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: Tab. 1);
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<bibRefCitation author="Hummon, WD" journalOrPublisher="Meiofauna Marina" pageId="35" pageNumber="36" pagination="121 - 132" title="Tetranchyroderma parapapii sp. n. (Gastrotricha, Thaumastodermatidae), a North American analog to the European T. papii, with a redescription of the latter." volume="17" year="2009">Hummon (2009</bibRefCitation>
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: N Am and E Med & Red Sea Databases);
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<bibRefCitation author="Hochberg, R" journalOrPublisher="Meiofauna Marina" pageId="35" pageNumber="36" pagination="101 - 107" title="Gastrotricha of Bocas del Toro, Panama: A preliminary report." volume="16" year="2008">Hochberg (2008</bibRefCitation>
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: p. 103; tab. 2; fig. 2A.)
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="9" lastPageNumber="10" pageId="8" pageNumber="9" type="redescribed diagnosis">
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<paragraph pageId="8" pageNumber="9">Redescribed diagnosis:</paragraph>
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<paragraph lastPageId="9" lastPageNumber="10" pageId="8" pageNumber="9">
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Adult Lt 390
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<normalizedToken originalValue="µm">µm</normalizedToken>
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; PhJIn at U32. Head bluntly rounded, but without ocelli, neck constriction extended but slight; trunk slender, with two
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<pageBreakToken pageId="9" pageNumber="10" start="start">broad</pageBreakToken>
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caudal lobes that incise medially to U92, without a peduncle. Glands not seen; protonephridia 3 per side, at U32, U78 and U87; longitudinal muscles are striated. TbA 3 per side (L=6, 8, 11
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<normalizedToken originalValue="µm">µm</normalizedToken>
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) insert in parallel, protruding obliquely to the rear; TbVL 6 per side, arising in groups of 3/2/1 (L=14, 8, 6 / 17, 7 / 14
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<normalizedToken originalValue="µm">µm</normalizedToken>
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) at U36-U38 /U46-U49 /U57, all protruding obliquely to the rear, proceding rearward from longer to shorter in each group; TbP 6 per caudal lobe (L=8-10
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<normalizedToken originalValue="µm">µm</normalizedToken>
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), longest medially on each lobe. Mouth terminal, of medium breadth; buccal cavity goblet-shaped; pharynx width follows the head/neck contours, with inconspicuous basal pores that open well behind the neck constriction; intestine narrows fore to aft, anus ventral at U91. Ventral ciliation: a unified field beneath the head splits into a pair of longitudinal bands, each narrow in breadth, that continues rearward to the level of the anus, and a second pair of longitudinal bands that lie medially from U12 to U34, with a an isolated patch lying medially behind the anus. Probably parthenogenic; male system not seen; ovaries paired in hindgut region, with oocytes on both sides behind the predominant ovum that develops medially forward toward the midgut; caudal and frontal organs not seen.
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="10" lastPageNumber="11" pageId="9" pageNumber="10" type="redescription">
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<paragraph pageId="9" pageNumber="10">Redescription:</paragraph>
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<paragraph pageId="9" pageNumber="10">
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Adult Lt 322-390
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<normalizedToken originalValue="µm">µm</normalizedToken>
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; LPh 103-126
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<normalizedToken originalValue="µm">µm</normalizedToken>
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to PhJIn at U32-U33 (Fig. 4). Body flattened ventrally, vaulted dorsally, comprised of bluntly rounded head that lacks ocelli, neck constriction extended but slight; trunk slender, with two broad caudal lobes that incise medially to U92, without a peduncle. Widths of head /neck /trunk /caudal base are as follows: 30 /24 /36 /25
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<normalizedToken originalValue="µm">µm</normalizedToken>
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at U10 /U18 /U52 /U88, respectively. Glands absent. Protonephridia 3 per side, each with 2 flagellae, located just before the PhJIn at U32, and in the hindgut region at U78 and U87. Longitudinal muscles are striated, as is characteristic of members of this family.
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</paragraph>
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<paragraph pageId="9" pageNumber="10">
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Adhesive tubes: TbA 3 per side (L 6, 8, 11
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<normalizedToken originalValue="µm">µm</normalizedToken>
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), inserting in parallel at U05 and protruding obliquely to the rear, proceding rearward from longer to shorter; TbVL 6 per side, arising in groups of 3/2/1 (L 14, 8, 6 /17, 7 /14
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<normalizedToken originalValue="µm">µm</normalizedToken>
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) at U36-U38 /U46-U49 /U57, all protruding obliquely to the rear, proceding rearward from longer to shorter in each group; TbL per se /TbD /TbV are absent; TbP 6 per caudal lobe (L 8-10
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<normalizedToken originalValue="µm">µm</normalizedToken>
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), longest medially on each lobe.
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</paragraph>
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<paragraph pageId="9" pageNumber="10">
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Ciliation: Sensory hairs (L 9-18
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<normalizedToken originalValue="µm">µm</normalizedToken>
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) are abundant on the body, in 5 columns per side - ventrolateral, lateral, 2 dorsolateral and dorsal - of 18-20 per side each from U00 to U93, the tips of each being curled to the rear. Ventral ciliation: a unified field beneath the head splits into a pair of longitudinal bands, each narrow in breadth, that continues rearward to the level of the anus, and a second pair of longitudinal bands lie medially from U12 to U34, with a an isolated patch lying medially behind the anus.
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</paragraph>
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<paragraph lastPageId="10" lastPageNumber="11" pageId="9" pageNumber="10">
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Digestive tract: Mouth terminal, slightly inclined toward the ventral, of medium breadth (8
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<normalizedToken originalValue="µm">µm</normalizedToken>
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in diameter), goblet-shaped buccal cavity large, with 4 internal sensory hairs (L 2
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<normalizedToken originalValue="µm">µm</normalizedToken>
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) per side, 3 laterally and 1 posteriorly; pharynx broadest in the buccal region, with breadth following the body contours in the head and neck region, basal pharyngeal pores inconspicuous, opening well behind the level of the neck constriction (U27); foregut broad, midgut narrowing, hindgut broadening a bit before the anus
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<pageBreakToken pageId="10" pageNumber="11" start="start">,</pageBreakToken>
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which occurs ventrally at U91; circular muscules sheath both the pharynx and the intestine, the former more heavily than the latter.
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</paragraph>
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<paragraph pageId="10" pageNumber="11">
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Reproductive tract: Probably parthenogenic; male system not seen; ovaries paired in hindgut region, with oocytes on both sides behind the predominant ovum (77
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<normalizedToken originalValue="×">x</normalizedToken>
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33
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<normalizedToken originalValue="µm">µm</normalizedToken>
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) which develops medially forward toward the midgut; caudal and frontal organs not seen.
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</paragraph>
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<paragraph pageId="10" pageNumber="11">Ecology: Occasional in frequency of occurrence (10-30% of samples), scarce to prevalent in abundance (3% to greater than 30% of a sample, sometimes a co-dominant [cdom]); littoral in fine-medium, medium-well sorted to very poorly sorted clean coralline sand at mean low water to low water spring, 0-15 cm sand depth.</paragraph>
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<caption pageId="10" pageNumber="11">
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<paragraph pageId="10" pageNumber="11">
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Figure 4.
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<taxonomicName family="Dactylopodolidae" genus="Dactylopodola" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dactylopodola agadasys" order="Macrodasyida" pageId="10" pageNumber="11" phylum="Gastrotricha" rank="species" species="agadasys">Dactylopodola agadasys</taxonomicName>
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Hochberg, 2003 dorsal, ventral and lateral views of a mature adult (Lt=390, LPh=126
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<normalizedToken originalValue="µm">µm</normalizedToken>
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) from Nabq, Egypt; dorsal with dorsal and lateral body cilia, digestive, reproductive and muscular tracts, and protonephridia; ventral with adhesive tubes and locomotor ciliary bands; lateral with digestive, reproductive and muscular tracts, adhesive tubes, and protonephridia.
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection pageId="10" pageNumber="11" type="geographical distribution">
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<paragraph pageId="10" pageNumber="11">Geographical distribution:</paragraph>
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<paragraph pageId="10" pageNumber="11">
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ANW:UNITED STATES:Florida {Bahia Honda SW [video], Crandon Park Inside}. RED:EGYPT: {Sharm el-Arab Inside,
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<normalizedToken originalValue="Na’ama">Na'ama</normalizedToken>
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Bay N, Nabq S [4-videos], Sharm el-Naga [cdom] [video], Ras Nasrani [video]}. CRB:PANAMA: Bocas del Toro {Isla
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<normalizedToken originalValue="Colón">Colon</normalizedToken>
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Site 4} IND:AUSTRALIA: Queensland {^Macleay Island W (
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<geoCoordinate direction="south" orientation="latitude" precision="925" value="-27.583334">27°35'S</geoCoordinate>
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,
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<geoCoordinate direction="east" orientation="longitude" precision="925" value="153.35">153°21'E</geoCoordinate>
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)}
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="11" lastPageNumber="12" pageId="10" pageNumber="11" type="remarks">
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<paragraph pageId="10" pageNumber="11">Remarks</paragraph>
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<paragraph pageId="10" pageNumber="11">
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: There are six video records of
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<taxonomicName family="Dactylopodolidae" genus="Dactylopodola" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dactylopodola agadasys" order="Macrodasyida" pageId="10" pageNumber="11" phylum="Gastrotricha" rank="species" species="agadasys">Dactylopodola agadasys</taxonomicName>
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, five from three locations on the Red Sea coast of Egypt, and one from the Atlantic coast of Florida, US (see below). It was listed among the marine gastrotrichs for which videos were available by Hummon, Todaro & Evans 2005. Four of these are available as MPEG 2 (and MPEG 1) from
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<bibRefCitation author="Hummon, WD" journalOrPublisher="Meiofauna Marina" pageId="35" pageNumber="36" pagination="121 - 132" title="Tetranchyroderma parapapii sp. n. (Gastrotricha, Thaumastodermatidae), a North American analog to the European T. papii, with a redescription of the latter." volume="17" year="2009">Hummon (2009)</bibRefCitation>
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, all from Nabq S, near Ras Mohamed National Park, on the South Sinai, Egypt: #770 an adult of Lt=389
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<normalizedToken originalValue="µm">µm</normalizedToken>
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(LPh=121
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<normalizedToken originalValue="µm">µm</normalizedToken>
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), collected in July 1994, #769 an adult of Lt=369
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<normalizedToken originalValue="µm">µm</normalizedToken>
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(LPh=120
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<normalizedToken originalValue="µm">µm</normalizedToken>
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), #772 an adult of Lt=362
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<normalizedToken originalValue="µm">µm</normalizedToken>
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(LPh=120
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<normalizedToken originalValue="µm">µm</normalizedToken>
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), and the other #773 an adult of Lt=322
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<normalizedToken originalValue="µm">µm</normalizedToken>
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(LPh=103
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<normalizedToken originalValue="µm">µm</normalizedToken>
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).
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</paragraph>
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<paragraph pageId="10" pageNumber="11">
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I found this species in the Red Sea sites while on a Fulbright Senior Research Scholarship during 1994; thus my drawings and videos antedate by seven years its formal description by Hochberg, 2003. He had found it in eastern Australia during 2001, the species now having a much broader biogeographical range than just Austalia or the upper Red Sea. His recent report of the species from Panama (
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<bibRefCitation author="Hochberg, R" journalOrPublisher="Meiofauna Marina" pageId="35" pageNumber="36" pagination="101 - 107" title="Gastrotricha of Bocas del Toro, Panama: A preliminary report." volume="16" year="2008">Hochberg 2008</bibRefCitation>
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) not only further extends its range, but has implications for an original distribution that would date it back to a time prior to the raising of the Isthmus of Panama some 3 million years ago during the Pliocene. During this past summer (2010), while reviewing videos from Florida collections made during February 1991 by Hummon, Evans & Todaro, I discovered that a species, thought when collected in to be of unknown identity, was in fact
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<taxonomicName family="Dactylopodolidae" genus="Dactylopodola" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dactylopodola agadasys" order="Macrodasyida" pageId="10" pageNumber="11" phylum="Gastrotricha" rank="species" species="agadasys">Dactylopodola agadasys</taxonomicName>
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. It is shown in video #920 (though with unknown length).
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</paragraph>
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<paragraph lastPageId="11" lastPageNumber="12" pageId="10" pageNumber="11">
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The reason for redescribing this species is that
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<normalizedToken originalValue="Hochberg’s">Hochberg's</normalizedToken>
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drawing (
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<bibRefCitation author="Hochberg, R" journalOrPublisher="Meiofauna Marina" pageId="35" pageNumber="36" pagination="37 - 45" title="Two new species of Dactylopodola (Gastrotricha, Macrodasyida) from the islands off the Queensland Coast, Australia." volume="12" year="2003">Hochberg 2003</bibRefCitation>
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: Fig. 6) gives an incorrect impression of what the species looks like. By comparison with the photo presented in Hochberg Fig. 5, the drawing as presented in Fig. 6 is not sufficiently thin, and the TbP do not have attached cilia. Other difficulties with the drawing are that the TbA are of increasing length, interior to exterior, and not as shown; moreover the TbVL are grouped in a 3/2/1 sequence, all projecting obliquely to the rear, proceding rearward from longer to shorter in each group, and not occurring as a column of tubes that are equally spaced, though decreasing in size, as shown in Hochberg Fig. 6 (as is confirmed in one of several additional photographs given to me by
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<pageBreakToken pageId="11" pageNumber="12" start="start">Hochberg</pageBreakToken>
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, see under this species in Gastrotrich Figures in
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<bibRefCitation author="Hummon, WD" journalOrPublisher="Meiofauna Marina" pageId="35" pageNumber="36" pagination="121 - 132" title="Tetranchyroderma parapapii sp. n. (Gastrotricha, Thaumastodermatidae), a North American analog to the European T. papii, with a redescription of the latter." volume="17" year="2009">Hummon 2009</bibRefCitation>
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). I cannot speak to the ventral ciliation, as seen by Hochberg, but that which I have drawn in the redescription can be verified in the videos. I also can not speak to the identity of the specimen from Panama, the photo not giving sufficient detail for such an identification, but I give the author of the species the benefit of the doubt in his identification; I have myself seen the species from elsewhere in the Caribbean and made the same identification (as redescribed).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="11" pageNumber="12" type="etymology">
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<paragraph pageId="11" pageNumber="12">Etymology:</paragraph>
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<paragraph pageId="11" pageNumber="12">
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Agadasys (Greek: aga + dasys = meaning 'very
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<normalizedToken originalValue="hairy’">hairy'</normalizedToken>
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) was named by Hochberg in reference to the numerous tactile cilia that cover the body.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="11" pageNumber="12" type="taxonomic affinities">
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<paragraph pageId="11" pageNumber="12">Taxonomic affinities:</paragraph>
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<paragraph pageId="11" pageNumber="12">
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<taxonomicName family="Dactylopodolidae" genus="Dactylopodola" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dactylopodola agadasys" order="Macrodasyida" pageId="11" pageNumber="12" phylum="Gastrotricha" rank="species" species="agadasys">Dactylopodola agadasys</taxonomicName>
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is presently the thinnest member of the genus, and the only species in the genus that has the following combination of characters: a bluntly rounded head and PhJIn at U33-U32, which also has TbA 3 per side in a parallel series that increases in length medial to lateral; TbVL 6 per side (in clusters of 3, 2 and 1, also parallel and increasing in length medial to lateral); and TbP 6 per side, radiating from broadly rounded lobes, but without TbL per se /TbD /TbV.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |