<documentid="EC5E9F7641A240A0C72C249337B25DC2"ID-DOI="10.3853/j.0067-1975.61.2009.1529"ID-ISSN="2201-4349"ID-Zenodo-Dep="5238755"IM.materialsCitations_approvedBy="felipe"IM.metadata_approvedBy="felipe"IM.tables_requiresApprovalFor="existingObjects,plazi"IM.taxonomicNames_approvedBy="felipe"checkinTime="1629572455428"checkinUser="felipe"docAuthor="Capa, María & Murray, Anna"docDate="2009"docId="2202BF4FFFDC5B6EFED850A4FD67F905"docLanguage="en"docName="RecAustMus.61.2.201.224.pdf"docOrigin="Records of the Australian Museum 61 (2)"docSource="http://dx.doi.org/10.3853/j.0067-1975.61.2009.1529"docStyle="DocumentStyle:7863F7301B7BEE922F541F6F9B5AEEC6.2:RecAustMus.2008-2018.journal_article.0cover"docStyleId="7863F7301B7BEE922F541F6F9B5AEEC6"docStyleName="RecAustMus.2008-2018.journal_article.0cover"docStyleVersion="2"docTitle="Megalomma inflata Capa & Murray 2009, n.sp."docType="treatment"docVersion="4"lastPageNumber="217"masterDocId="DE3BC737FFCC5B7FFF9D5167FF8AFFD9"masterDocTitle="Review of the Genus Megalomma (Polychaeta: Sabellidae) in Australia with Description of Three New Species, New Records and Notes on Certain Features with Phylogenetic Implications"masterLastPageNumber="224"masterPageNumber="201"pageNumber="217"updateTime="1719342478377"updateUser="felipe"zenodo-license-document="CC-BY-4.0"zenodo-license-figures="CC-BY-4.0">
<mods:titleid="623065547D93E499F57430F86ABE8803">Review of the Genus Megalomma (Polychaeta: Sabellidae) in Australia with Description of Three New Species, New Records and Notes on Certain Features with Phylogenetic Implications</mods:title>
<taxonomicNameid="6DAB75DAFFDC5B6FFED850A4FDBDFE04"ID-CoL="6R838"authority="Capa & Murray, 2009"authorityName="Capa & Murray"authorityYear="2009"box="[325,567,451,477]"class="Polychaeta"family="Sabellidae"genus="Megalomma"kingdom="Animalia"order="Sabellida"pageId="16"pageNumber="217"phylum="Annelida"rank="species"species="inflata"status="sp. nov.">
<figureCitationid="329012DCFFDC5B6FFEEC5366FE7BFDC2"box="[369,497,513,539]"captionStart="Figure 4"captionStartId="8.[374,437,892,913]"captionTargetBox="[382,1254,157,840]"captionTargetId="figure-9@8.[374,1258,151,852]"captionTargetPageId="8"captionText="Figure 4. Drawings to scale of thoracic and abdominal uncini. Megalomma phyllisae n.sp.:"figureDoi="http://doi.org/10.5281/zenodo.5238761"httpUri="https://zenodo.org/record/5238761/files/figure.png"pageId="16"pageNumber="217">Figs 4G,H</figureCitation>
,
<figureCitationid="329012DCFFDC5B6FFE605366FDAEFDC2"box="[509,548,513,539]"captionStart="Figure 5"captionStartId="10.[416,481,1123,1144]"captionTargetBox="[420,1214,157,1082]"captionTargetId="figure-9@10.[416,1218,151,1088]"captionTargetPageId="10"captionText="Figure 5. Drawings to scale of radioles sections, at the base: (A) Megalomma"figureDoi="http://doi.org/10.5281/zenodo.5238765"httpUri="https://zenodo.org/record/5238765/files/figure.png"pageId="16"pageNumber="217">5D</figureCitation>
,
<figureCitationid="329012DCFFDC5B6FFDAC5366FDC5FDC2"box="[561,591,513,539]"captionStart="Figure 11"captionStartId="17.[121,183,1528,1549]"captionTargetBox="[121,1421,151,1513]"captionTargetId="figure-81@17.[121,1421,151,1513]"captionTargetPageId="17"captionText="Figure 11. SEM of Megalomma inflata n.sp., AMW23057; (A) tip of radioles and dorsalmost compound subdistal eyes; (B) base of radiolar crown and anterior segments, lateral view; (C) margins of collar, dorsolateral view; (D) chaetae, first thoracic segment; (E) chaetae, anterior thoracic segment; (F) inferior thoracic chaetae, posterior thoracic segment; (G) abdominal chaetae; (H) thoracic uncini; (I) companion chaetae, same chaetiger; (J) anterior abdominal uncini."figureDoi="http://doi.org/10.5281/zenodo.5238777"httpUri="https://zenodo.org/record/5238777/files/figure.png"pageId="16"pageNumber="217">11</figureCitation>
<materialsCitationid="1AC30404FFDC5B6FFEEF535CFD23FDA7"accessionNumber="W35503"collectingDate="1990-01-15"collectionCode="AM"collectorName="The Ecology Lab & Pioneer Project & Stn"elevation="50"latitude="-34.066666"location="Bate Bay"longLatPrecision="1201"longitude="151.21666"pageId="16"pageNumber="217"specimenCount="1"stateProvince="New South Wales"typeStatus="holotype">
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<materialsCitationid="1AC30404FFDC5B6FFD2D530CFE57FD77"accessionNumber="W35504"collectingDate="1990-06-25"collectingDateMax="1990-07-26"collectingDateMin="1990-06-25"collectionCode="AM"collectorName="Stn"elevation="50"latitude="-34.6"location="Bass Point"longLatPrecision="1198"longitude="150.9"pageId="16"pageNumber="217"specimenCount="1"stateProvince="New South Wales"typeStatus="paratype">
<locationid="AF745882FFDC5B6FFE2D53E4FD84FD4F"LSID="urn:lsid:plazi:treatment:2202BF4FFFDC5B6EFED850A4FD67F905:AF745882FFDC5B6FFE2D53E4FD84FD4F"box="[432,526,643,662]"latitude="-34.6"longLatPrecision="1198"longitude="150.9"name="Bass Point"pageId="16"pageNumber="217"stateProvince="New South Wales">Bass Point</location>
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<locationid="AF745882FFDC5B6FFD6C53FCFF5CFD1F"LSID="urn:lsid:plazi:treatment:2202BF4FFFDC5B6EFED850A4FD67F905:AF745882FFDC5B6FFD6C53FCFF5CFD1F"latitude="-34.6"longLatPrecision="1198"longitude="150.9"name="Bass Point"pageId="16"pageNumber="217"stateProvince="New South Wales">Bass Point</location>
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<locationid="AF745882FFDC5B6FFE1753ACFE63FD07"LSID="urn:lsid:plazi:treatment:2202BF4FFFDC5B6EFED850A4FD67F905:AF745882FFDC5B6FFE1753ACFE63FD07"box="[394,489,715,734]"latitude="-34.6"longLatPrecision="1198"longitude="150.9"name="Bass Point"pageId="16"pageNumber="217"stateProvince="New South Wales">Bass Point</location>
<materialsCitationid="1AC30404FFDC5B6FFE085384FE24FCFF"accessionNumber="W23057"collectingDate="1990-02-01"collectionCode="AM"collectorName="The Ecology Lab & Pioneer Project"elevation="50"latitude="-34.6"location="Bass Point"longLatPrecision="1198"longitude="150.9"pageId="16"pageNumber="217"specimenCount="51"stateProvince="New South Wales"typeStatus="paratype">
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<collectionCodeid="CCBA969CFFDC5B6FFD2152F6FD71FC7D"box="[700,763,913,932]"country="Viet Nam"httpUri="http://grbio.org/cool/82c5-17ij"name="Zoological Museum, University of Hanoi"pageId="16"pageNumber="217">ZMUH</collectionCode>
<specimenCodeid="FA0DA622FFDC5B6FFC9C52F6FF59FC65"collectionCode="ZMUH"country="Viet Nam"httpUri="http://grbio.org/cool/82c5-17ij"name="Zoological Museum, University of Hanoi"pageId="16"pageNumber="217">PE 1303</specimenCode>
<bibRefCitationid="CE3A73A8FFDC5B6FFD9C52CEFDFBFC65"author="Willey, A"box="[513,625,937,956]"pageId="16"pageNumber="217"pagination="212 - 324"refId="ref18890"refString="Willey, A., 1905. Report on the Polychaeta collected by Professor Herdman, at Ceylon, in 1902. Report to the Government of Ceylon on the Pearl Oyster Fisheries of the Gulf of Manaar, with supplementary reports upon the Marine Biology of Ceylon, by Other Naturalists. Part IV supplementary report 30: 212 - 324."type="book chapter"year="1905">Willey, 1905</bibRefCitation>
. The synapomorphy of this species is the presence of an inflated peristomium protruding from collar. Moreover,
<taxonomicNameid="6DAB75DAFFDC5B6FFE845573FEF5FBF2"authority="Capa & Murray, 2009"authorityName="Capa & Murray"authorityYear="2009"box="[281,383,1044,1067]"class="Insecta"family="Carabidae"genus="Megalomma"kingdom="Animalia"order="Coleoptera"pageId="16"pageNumber="217"phylum="Arthropoda"rank="species"species="inflata"status="sp. nov.">
is characterized by a combination of characters: dorsalmost radioles with large subdistal compound eyes and occasionally one or two small pairs in following radioles, radiolar skeleton with around 10 cells in transverse section, dorsal margins of collar fused to the faecal groove forming broad and U-shaped pockets on each side, caruncle absent, and thoracic inferior chaetae with tips progressively tapering (
wide, with eight thoracic chaetigers and 37 abdominal chaetigers. Crown longer than thorax, with 14 pairs of radioles arranged in two semicircular lobes. External margin of radioles quadrangular, lateral flanges absent (
<figureCitationid="329012DCFFDC5B6FFE0D54CFFE7BFA66"box="[400,497,1448,1471]"captionStart="Figure 11"captionStartId="17.[121,183,1528,1549]"captionTargetBox="[121,1421,151,1513]"captionTargetId="figure-81@17.[121,1421,151,1513]"captionTargetPageId="17"captionText="Figure 11. SEM of Megalomma inflata n.sp., AMW23057; (A) tip of radioles and dorsalmost compound subdistal eyes; (B) base of radiolar crown and anterior segments, lateral view; (C) margins of collar, dorsolateral view; (D) chaetae, first thoracic segment; (E) chaetae, anterior thoracic segment; (F) inferior thoracic chaetae, posterior thoracic segment; (G) abdominal chaetae; (H) thoracic uncini; (I) companion chaetae, same chaetiger; (J) anterior abdominal uncini."figureDoi="http://doi.org/10.5281/zenodo.5238777"httpUri="https://zenodo.org/record/5238777/files/figure.png"pageId="16"pageNumber="217">Fig. 11A</figureCitation>
), skeleton with 8–10 cells in transverse section (
<figureCitationid="329012DCFFDC5B6FFEE854A2FE41FA05"box="[373,459,1477,1500]"captionStart="Figure 5"captionStartId="10.[416,481,1123,1144]"captionTargetBox="[420,1214,157,1082]"captionTargetId="figure-9@10.[416,1218,151,1088]"captionTargetPageId="10"captionText="Figure 5. Drawings to scale of radioles sections, at the base: (A) Megalomma"figureDoi="http://doi.org/10.5281/zenodo.5238765"httpUri="https://zenodo.org/record/5238765/files/figure.png"pageId="16"pageNumber="217">Fig. 5D</figureCitation>
). Tip of radioles digitiform and shorter than pinnules (
<figureCitationid="329012DCFFDC5B6FFE095485FE7DFA20"box="[404,503,1506,1529]"captionStart="Figure 11"captionStartId="17.[121,183,1528,1549]"captionTargetBox="[121,1421,151,1513]"captionTargetId="figure-81@17.[121,1421,151,1513]"captionTargetPageId="17"captionText="Figure 11. SEM of Megalomma inflata n.sp., AMW23057; (A) tip of radioles and dorsalmost compound subdistal eyes; (B) base of radiolar crown and anterior segments, lateral view; (C) margins of collar, dorsolateral view; (D) chaetae, first thoracic segment; (E) chaetae, anterior thoracic segment; (F) inferior thoracic chaetae, posterior thoracic segment; (G) abdominal chaetae; (H) thoracic uncini; (I) companion chaetae, same chaetiger; (J) anterior abdominal uncini."figureDoi="http://doi.org/10.5281/zenodo.5238777"httpUri="https://zenodo.org/record/5238777/files/figure.png"pageId="16"pageNumber="217">Fig. 11A</figureCitation>
). Three pairs of dorsalmost radioles with a subdistal compound eye and an extra fourth eye on the right side, with distinct ommatidia, eye-size diminishing ventrally; dorsalmost eyes spiral, almost surrounding radioles. Dorsal lips with radiolar appendages shorter than two thoracic chaetigers and no visible pinnular appendages. Ventral lips rounded and well developed. Ventral sacs present. Caruncle absent. Short smooth keel present. Posterior peristomial collar with rounded dorsal margins fused to faecal groove, dorsal collar lappets absent (
<figureCitationid="329012DCFFDC5B6FFF33566FFE9AF8C6"box="[174,272,1800,1823]"captionStart="Figure 11"captionStartId="17.[121,183,1528,1549]"captionTargetBox="[121,1421,151,1513]"captionTargetId="figure-81@17.[121,1421,151,1513]"captionTargetPageId="17"captionText="Figure 11. SEM of Megalomma inflata n.sp., AMW23057; (A) tip of radioles and dorsalmost compound subdistal eyes; (B) base of radiolar crown and anterior segments, lateral view; (C) margins of collar, dorsolateral view; (D) chaetae, first thoracic segment; (E) chaetae, anterior thoracic segment; (F) inferior thoracic chaetae, posterior thoracic segment; (G) abdominal chaetae; (H) thoracic uncini; (I) companion chaetae, same chaetiger; (J) anterior abdominal uncini."figureDoi="http://doi.org/10.5281/zenodo.5238777"httpUri="https://zenodo.org/record/5238777/files/figure.png"pageId="16"pageNumber="217">Fig. 11C</figureCitation>
); collar pockets present, low due to deep incision (dorsal peristomium inflated and dorsal collar difficult to discern) (
<figureCitationid="329012DCFFDC5B6FFEB25625FE1FF880"box="[303,405,1858,1881]"captionStart="Figure 11"captionStartId="17.[121,183,1528,1549]"captionTargetBox="[121,1421,151,1513]"captionTargetId="figure-81@17.[121,1421,151,1513]"captionTargetPageId="17"captionText="Figure 11. SEM of Megalomma inflata n.sp., AMW23057; (A) tip of radioles and dorsalmost compound subdistal eyes; (B) base of radiolar crown and anterior segments, lateral view; (C) margins of collar, dorsolateral view; (D) chaetae, first thoracic segment; (E) chaetae, anterior thoracic segment; (F) inferior thoracic chaetae, posterior thoracic segment; (G) abdominal chaetae; (H) thoracic uncini; (I) companion chaetae, same chaetiger; (J) anterior abdominal uncini."figureDoi="http://doi.org/10.5281/zenodo.5238777"httpUri="https://zenodo.org/record/5238777/files/figure.png"pageId="16"pageNumber="217">Fig. 11C</figureCitation>
); lateral margins of collar smooth, ventral lappets prominent, pointed and not overlapping (
<figureCitationid="329012DCFFDC5B6FFF32561AFEBFF84D"box="[175,309,1917,1940]"captionStart="Figure 11"captionStartId="17.[121,183,1528,1549]"captionTargetBox="[121,1421,151,1513]"captionTargetId="figure-81@17.[121,1421,151,1513]"captionTargetPageId="17"captionText="Figure 11. SEM of Megalomma inflata n.sp., AMW23057; (A) tip of radioles and dorsalmost compound subdistal eyes; (B) base of radiolar crown and anterior segments, lateral view; (C) margins of collar, dorsolateral view; (D) chaetae, first thoracic segment; (E) chaetae, anterior thoracic segment; (F) inferior thoracic chaetae, posterior thoracic segment; (G) abdominal chaetae; (H) thoracic uncini; (I) companion chaetae, same chaetiger; (J) anterior abdominal uncini."figureDoi="http://doi.org/10.5281/zenodo.5238777"httpUri="https://zenodo.org/record/5238777/files/figure.png"pageId="16"pageNumber="217">Fig. 11B,C</figureCitation>
). Ventral shields quadrangular, separated from the neuropodial tori, all similar in width (
<figureCitationid="329012DCFFDC5B6FFD3456FDFC86F868"box="[681,780,1946,1969]"captionStart="Figure 11"captionStartId="17.[121,183,1528,1549]"captionTargetBox="[121,1421,151,1513]"captionTargetId="figure-81@17.[121,1421,151,1513]"captionTargetPageId="17"captionText="Figure 11. SEM of Megalomma inflata n.sp., AMW23057; (A) tip of radioles and dorsalmost compound subdistal eyes; (B) base of radiolar crown and anterior segments, lateral view; (C) margins of collar, dorsolateral view; (D) chaetae, first thoracic segment; (E) chaetae, anterior thoracic segment; (F) inferior thoracic chaetae, posterior thoracic segment; (G) abdominal chaetae; (H) thoracic uncini; (I) companion chaetae, same chaetiger; (J) anterior abdominal uncini."figureDoi="http://doi.org/10.5281/zenodo.5238777"httpUri="https://zenodo.org/record/5238777/files/figure.png"pageId="16"pageNumber="217">Fig. 11B</figureCitation>
). First ventral shield longer than the rest, with m-shaped anterior margin although not conspicuous. First chaetiger with superior and inferior elongate narrowly hooded chaetae, superior longer than inferior (
<figureCitationid="329012DCFFDC5B6FFB6D51B2FADDFF35"box="[1264,1367,213,236]"captionStart="Figure 11"captionStartId="17.[121,183,1528,1549]"captionTargetBox="[121,1421,151,1513]"captionTargetId="figure-81@17.[121,1421,151,1513]"captionTargetPageId="17"captionText="Figure 11. SEM of Megalomma inflata n.sp., AMW23057; (A) tip of radioles and dorsalmost compound subdistal eyes; (B) base of radiolar crown and anterior segments, lateral view; (C) margins of collar, dorsolateral view; (D) chaetae, first thoracic segment; (E) chaetae, anterior thoracic segment; (F) inferior thoracic chaetae, posterior thoracic segment; (G) abdominal chaetae; (H) thoracic uncini; (I) companion chaetae, same chaetiger; (J) anterior abdominal uncini."figureDoi="http://doi.org/10.5281/zenodo.5238777"httpUri="https://zenodo.org/record/5238777/files/figure.png"pageId="16"pageNumber="217">Fig. 11D</figureCitation>
). Rest of thoracic chaetigers with elongate narrowly hooded superior chaetae and broadly hooded inferior notochaetae with tips progressively tapering (type B) (
<figureCitationid="329012DCFFDC5B6FFB38504AFAABFE9D"box="[1189,1313,301,324]"captionStart="Figure 11"captionStartId="17.[121,183,1528,1549]"captionTargetBox="[121,1421,151,1513]"captionTargetId="figure-81@17.[121,1421,151,1513]"captionTargetPageId="17"captionText="Figure 11. SEM of Megalomma inflata n.sp., AMW23057; (A) tip of radioles and dorsalmost compound subdistal eyes; (B) base of radiolar crown and anterior segments, lateral view; (C) margins of collar, dorsolateral view; (D) chaetae, first thoracic segment; (E) chaetae, anterior thoracic segment; (F) inferior thoracic chaetae, posterior thoracic segment; (G) abdominal chaetae; (H) thoracic uncini; (I) companion chaetae, same chaetiger; (J) anterior abdominal uncini."figureDoi="http://doi.org/10.5281/zenodo.5238777"httpUri="https://zenodo.org/record/5238777/files/figure.png"pageId="16"pageNumber="217">Fig. 11E,G</figureCitation>
). Neuropodial tori slightly diminishing in width posteriorly. Thoracic uncini with several rows of small teeth, similar in size, above main fang (
<figureCitationid="329012DCFFDC5B6FFB9750E2FBE5FE45"box="[1034,1135,389,412]"captionStart="Figure 11"captionStartId="17.[121,183,1528,1549]"captionTargetBox="[121,1421,151,1513]"captionTargetId="figure-81@17.[121,1421,151,1513]"captionTargetPageId="17"captionText="Figure 11. SEM of Megalomma inflata n.sp., AMW23057; (A) tip of radioles and dorsalmost compound subdistal eyes; (B) base of radiolar crown and anterior segments, lateral view; (C) margins of collar, dorsolateral view; (D) chaetae, first thoracic segment; (E) chaetae, anterior thoracic segment; (F) inferior thoracic chaetae, posterior thoracic segment; (G) abdominal chaetae; (H) thoracic uncini; (I) companion chaetae, same chaetiger; (J) anterior abdominal uncini."figureDoi="http://doi.org/10.5281/zenodo.5238777"httpUri="https://zenodo.org/record/5238777/files/figure.png"pageId="16"pageNumber="217">Fig. 11H</figureCitation>
); uncinus with well developed breast, handle twice length of the distance from breast to main fang (
<figureCitationid="329012DCFFDC5B6FFC2050A7FB9BFE0E"box="[957,1041,448,471]"captionStart="Figure 4"captionStartId="8.[374,437,892,913]"captionTargetBox="[382,1254,157,840]"captionTargetId="figure-9@8.[374,1258,151,852]"captionTargetPageId="8"captionText="Figure 4. Drawings to scale of thoracic and abdominal uncini. Megalomma phyllisae n.sp.:"figureDoi="http://doi.org/10.5281/zenodo.5238761"httpUri="https://zenodo.org/record/5238761/files/figure.png"pageId="16"pageNumber="217">Fig. 4G</figureCitation>
). Companion chaetae with asymmetrical membrane and teeth covering about half the length (
<figureCitationid="329012DCFFDC5B6FFA1350BAFCE5FDC8"captionStart="Figure 11"captionStartId="17.[121,183,1528,1549]"captionTargetBox="[121,1421,151,1513]"captionTargetId="figure-81@17.[121,1421,151,1513]"captionTargetPageId="17"captionText="Figure 11. SEM of Megalomma inflata n.sp., AMW23057; (A) tip of radioles and dorsalmost compound subdistal eyes; (B) base of radiolar crown and anterior segments, lateral view; (C) margins of collar, dorsolateral view; (D) chaetae, first thoracic segment; (E) chaetae, anterior thoracic segment; (F) inferior thoracic chaetae, posterior thoracic segment; (G) abdominal chaetae; (H) thoracic uncini; (I) companion chaetae, same chaetiger; (J) anterior abdominal uncini."figureDoi="http://doi.org/10.5281/zenodo.5238777"httpUri="https://zenodo.org/record/5238777/files/figure.png"pageId="16"pageNumber="217">Fig. 11I</figureCitation>
). Neuropodia of anterior abdominal chaetigers with narrowly hooded chaetae (
<figureCitationid="329012DCFFDC5B6FFB1F537FFB67FDF6"box="[1154,1261,536,559]"captionStart="Figure 11"captionStartId="17.[121,183,1528,1549]"captionTargetBox="[121,1421,151,1513]"captionTargetId="figure-81@17.[121,1421,151,1513]"captionTargetPageId="17"captionText="Figure 11. SEM of Megalomma inflata n.sp., AMW23057; (A) tip of radioles and dorsalmost compound subdistal eyes; (B) base of radiolar crown and anterior segments, lateral view; (C) margins of collar, dorsolateral view; (D) chaetae, first thoracic segment; (E) chaetae, anterior thoracic segment; (F) inferior thoracic chaetae, posterior thoracic segment; (G) abdominal chaetae; (H) thoracic uncini; (I) companion chaetae, same chaetiger; (J) anterior abdominal uncini."figureDoi="http://doi.org/10.5281/zenodo.5238777"httpUri="https://zenodo.org/record/5238777/files/figure.png"pageId="16"pageNumber="217">Fig. 11F</figureCitation>
). Notopodia with uncini similar to thoracic uncini (
<figureCitationid="329012DCFFDC5B6FFB315352FA89FD95"box="[1196,1283,565,588]"captionStart="Figure 11"captionStartId="17.[121,183,1528,1549]"captionTargetBox="[121,1421,151,1513]"captionTargetId="figure-81@17.[121,1421,151,1513]"captionTargetPageId="17"captionText="Figure 11. SEM of Megalomma inflata n.sp., AMW23057; (A) tip of radioles and dorsalmost compound subdistal eyes; (B) base of radiolar crown and anterior segments, lateral view; (C) margins of collar, dorsolateral view; (D) chaetae, first thoracic segment; (E) chaetae, anterior thoracic segment; (F) inferior thoracic chaetae, posterior thoracic segment; (G) abdominal chaetae; (H) thoracic uncini; (I) companion chaetae, same chaetiger; (J) anterior abdominal uncini."figureDoi="http://doi.org/10.5281/zenodo.5238777"httpUri="https://zenodo.org/record/5238777/files/figure.png"pageId="16"pageNumber="217">Fig. 11J</figureCitation>
) but with shorter handles (
<figureCitationid="329012DCFFDC5B6FFC355335FC75FDB0"box="[936,1023,594,617]"captionStart="Figure 4"captionStartId="8.[374,437,892,913]"captionTargetBox="[382,1254,157,840]"captionTargetId="figure-9@8.[374,1258,151,852]"captionTargetPageId="8"captionText="Figure 4. Drawings to scale of thoracic and abdominal uncini. Megalomma phyllisae n.sp.:"figureDoi="http://doi.org/10.5281/zenodo.5238761"httpUri="https://zenodo.org/record/5238761/files/figure.png"pageId="16"pageNumber="217">Fig. 4H</figureCitation>
). Pygidium trilobed from ventral view, as a rounded papilla from dorsal view, with scattered eyespots laterally. Tube made of a thin and flexible layer of mucus covered by a mixture of fine sediment and mud.
(from AM W35505) also possesses dark, slightly inflated spots on the inner subdistal sides of most of the rest of the radioles (excluding the ventralmost three pairs) which could be incipient eyes. However, ommatidia could not be detected, and these therefore may just be pigmented areas.
—the fusion of dorsal collar margins to the faecal groove, the presence of dorsolateral pockets and the distribution of compound eyes in 1–3 dorsalmost pairs of radioles (this is if the spots found in
<taxonomicNameid="6DAB75DAFFDC5B6FFB6954ECFAEBFA7B"authority="Capa & Murray, 2009"authorityName="Capa & Murray"authorityYear="2009"box="[1268,1377,1419,1442]"class="Insecta"family="Carabidae"genus="Megalomma"kingdom="Animalia"order="Coleoptera"pageId="16"pageNumber="217"phylum="Arthropoda"rank="species"species="inflata"status="sp. nov.">
There are species described from several localities around the world that share with this new species some features such as the development and shape of collar dorsal margins, collar margins fused to the faecal groove, the presence of pockets, eyes present on one to three dorsalmost pairs of radioles, and the absence of a caruncle. These are
<bibRefCitationid="CE3A73A8FFDC5B6FFAEC566FFC44F8E5"author="Chamberlin, R"pageId="16"pageNumber="217"pagination="1 - 514"refId="ref17649"refString="Chamberlin, R. V., 1919. The Annelida Polychaeta of the Albatross Tropical Pacific Expedition, 1891 - 1905. Memoirs of the Museum of Comparative Zoology, Harvard College 48: 1 - 514."type="journal article"year="1919">Chamberlin, 1919</bibRefCitation>
<bibRefCitationid="CE3A73A8FFDC5B6FFB5A5625FAD7F880"author="Gravier, M"box="[1223,1373,1858,1881]"pageId="16"pageNumber="217"pagination="40 - 44"refId="ref18209"refString="Gravier, M. C., 1908. Sur les annelides polychetes rapportees par M. Le Dr. Rivet de Payta (Perou). Bulletin du Museum National d'Histoire Naturelle, Paris 14: 40 - 44."type="journal article"year="1908">Gravier, 1908</bibRefCitation>
<bibRefCitationid="CE3A73A8FFDC5B6FFC4D5607FBD5F8AE"author="Moore, J"box="[976,1119,1888,1911]"pageId="16"pageNumber="217"pagination="555 - 569"refId="ref18492"refString="Moore, J. P., 1905. Five new species of Pseudopotamilla from the Pacific coast of North America. Proceedings of the Academy of Natural Sciences (Philadelphia) 1: 555 - 569."type="journal article"year="1905">Moore, 1905</bibRefCitation>
)
</taxonomicName>
. None of these species have an inflated peristomium, nor are their collar pockets as broad and U-shaped as
<taxonomicNameid="6DAB75DAFFDC5B6FFC6256FCFBEDF86B"authority="Capa & Murray, 2009"authorityName="Capa & Murray"authorityYear="2009"box="[1023,1127,1947,1970]"class="Insecta"family="Carabidae"genus="Megalomma"kingdom="Animalia"order="Coleoptera"pageId="16"pageNumber="217"phylum="Arthropoda"rank="species"species="inflata"status="sp. nov.">
Another species described from the Indian Ocean and which shares some features with
<taxonomicNameid="6DAB75DAFFDD5B6EFF2C57EDFE91F978"authority="Capa & Murray, 2009"authorityName="Capa & Murray"authorityYear="2009"box="[177,283,1674,1697]"class="Insecta"family="Carabidae"genus="Megalomma"kingdom="Animalia"order="Coleoptera"pageId="17"pageNumber="218"phylum="Arthropoda"rank="species"species="inflata"status="sp. nov.">
<bibRefCitationid="CE3A73A8FFDD5B6EFDC457EDFD6FF978"author="Willey, A"box="[601,741,1674,1697]"pageId="17"pageNumber="218"pagination="212 - 324"refId="ref18890"refString="Willey, A., 1905. Report on the Polychaeta collected by Professor Herdman, at Ceylon, in 1902. Report to the Government of Ceylon on the Pearl Oyster Fisheries of the Gulf of Manaar, with supplementary reports upon the Marine Biology of Ceylon, by Other Naturalists. Part IV supplementary report 30: 212 - 324."type="book chapter"year="1905">Willey, 1905</bibRefCitation>