Epimeria robustoides Loerz & Maas & Linse & Coleman 2009, sp. n.
Epimeria robustoides Lörz & Coleman, sp. n. urn:lsid:zoobank.org:act: 96CEBCCA-C3EB-4219-AC2B-C6E81BD852D1 Figs 2–5 Epimeria robusta. – Bamard, 1958: 108; 1961: 103.– McCain 1971: 161.– De Broyer and Klages 1991: 164.– Coleman 1994: 560. Material examined. Holotype. Ovig. female 40 mm. 72°35.67´...
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2009
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Online Access: | https://dx.doi.org/10.5281/zenodo.3791524 https://zenodo.org/record/3791524 |
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ftdatacite:10.5281/zenodo.3791524 |
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openpolar |
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Open Polar |
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DataCite Metadata Store (German National Library of Science and Technology) |
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Biodiversity Taxonomy Animalia Arthropoda Malacostraca Amphipoda Epimeriidae Epimeria Epimeria robustoides |
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Biodiversity Taxonomy Animalia Arthropoda Malacostraca Amphipoda Epimeriidae Epimeria Epimeria robustoides Loerz, Anne Maas, Elizabeth Linse, Katrin Coleman, Charles Oliver Epimeria robustoides Loerz & Maas & Linse & Coleman 2009, sp. n. |
topic_facet |
Biodiversity Taxonomy Animalia Arthropoda Malacostraca Amphipoda Epimeriidae Epimeria Epimeria robustoides |
description |
Epimeria robustoides Lörz & Coleman, sp. n. urn:lsid:zoobank.org:act: 96CEBCCA-C3EB-4219-AC2B-C6E81BD852D1 Figs 2–5 Epimeria robusta. – Bamard, 1958: 108; 1961: 103.– McCain 1971: 161.– De Broyer and Klages 1991: 164.– Coleman 1994: 560. Material examined. Holotype. Ovig. female 40 mm. 72°35.67´5S, 18°8.17´W, depth 604–656 m, collected during the Polarstern cruise ANT III 1985 by Agassiz-trawl, 27.I.1985, station 273. Etymology. The species is named robustoides because of its morphological similarity to Epimeria robusta . Diagnosis. Body (Fig. 2A, B) robust. Posterior margin of pereonites 5–6 with small medial protrusion, pereonite 7 with shallow keel, pereonite 7 and posterior margins of metasome segments 1–2 with an elevation (in lateral view). Metasome segments 1–3 with mid-dorsal keel, metasome segment 3 and urosomite 1 with pointed tooth. Urosomite 3 with shallow mid-dorsal keel. Coxa of pereopods 1–3 tapering distally, apically rounded (Figs 4A, B, E). Propodus of gnathopods 1–2 expanded distally, with well-developed palm. Coxa of pereopod 4 very large, with wide posteroventral angle projecting somewhat ventrally. Pereopod 5 (Fig. 5D) ba- sis with posteromarginal tooth, basis of pereopod 6 with similar tooth but larger, pereopod 7 basis (Fig. 5C) widened proximally, but without tooth, only posterodistal angle pointed. Distribution. Weddell Sea, 604– 656 m. Description. Anterior cephalic margin sinuous, lateral cephalic lobe slightly produced; rostrum same length as head, reaching proximal part of antenna 1 peduncle article 1; eyes present, oval, 0.4 × head height. Pereonite 1 subequal in length to head (excluding rostrum), pereonite 2 approx. 0.75 x length of pereonite 1, pereonites 1 to 6 lacking mid-dorsal or dorsolateral processes; pereonite 7 posterior margin with dorsolateral carina weakly developed; pleonites 1–3 with carinae, pereonite 3 and urosomite 1 with acute mid-dorsal process. Urosomite 2 shortest, lacking mid-dorsal process, urosomite 3 with pointed posterior process. Epimeron. 1 antero- and posteroventral angle rounded; epimeron 2 and 3 posteroventral angle produced. Antenna. 1 peduncle article 1 with 2 small processes; article 2 with no process, shorter than article 1; article 3 shortest; accessory flagellum scale-like; primary flagellum of 45 articles. Antenna 2 articles 1–5 lacking distal processes, flagellum with 53 articles. Mandible. Incisor and lacinia mobilis strongly dentate; molar produced and triturative; palp article 3 densely setose medially, with long stout SS distally. Maxilla 1 medial plate subtriangular, obliquely convex inner margin with 11 stout, plumose SS; lateral plate distal margin oblique, with medially lobate RS; palp strongly exceeding outer plate; palp article 1 short, article 2 slightly curved medially with stout SS distomedially, stout RS distally. Maxilla 2 with long, distally crenulate setae distally on lateral and medial plates. Maxilliped lateral plate broadly rounded distally, medial plate with nodular RS and a row of long plumose SS on medial, anterior face; palp medial margin strongly setose; merus distally slightly expanded; dactyl with serrate medial margin. Pereopods. Gnathopod 1: coxa 1 long and slender, basis linear, slender, posterior margin with numerous fine SS; merus slightly longer than ischium, anterior margin very short, distal margin oblique, posterodistal angle acute, setose; carpus linear, distal half of posterior margin with long SS; propodus slightly expanded distally, anterior margin naked except for distal fringe of short SS, palm finely crenulate, slightly oblique, with cluster of RS defining rounded distal margin, posterior margin with numerous long SS; dactylus slender, slightly curved, posterior margin strongly serrate. Gnathopod 2: coxa 2 wider than coxa 1, basis linear, ischium anterior margin very short, distal margin obliquely articulating with carpus, carpus linear, anterior margin naked except for transverse row of SS distally, posterior margin with numerous stout SS distally; propodus linear, palm almost transverse, rounded, finely crenulated, lined with numerous submarginal RS; dactylus large, not exceeding palm, posterior margin serrate. Pereopod 3: coxa similar to coxa 2, basis linear, anterior and posterior margin finely setulose; merus slightly expanded distally; carpus shorter than merus, anterior margin naked, posterior margin with 6 pairs of RS; propodus naked anteriorly, posterior margin with 9 pairs of RS; dactylus stout, curved. Pereopod 4: coxa much larger than 3, wide posteroventral angle projecting somewhat ventrally; basis to dactylus as for pereopod 3. Pereopod 5: coxa rectangular; basis bearing posteromarginal tooth; merus drawn out posterodistally; carpus slightly widened distally, posterior margin with 7 pairs of RS; propodus linear, posterior margin with 10 pairs of RS; dactylus curved, stout, approx. 0.3 × propodus length. Pereopod 6: coxa anterior half hidden by coxa 5, anterior margin weakly concave, posterior margin slightly drawn out; basis posteromarginal tooth larger than in pereopod 5; merus drawn out posterodistally, ischium to dactylus as in pereopod 5. Pereopod 7: coxa subrectangular; basis widened distally, but without tooth, only posterodistal angle pointed; ischium to dactylus as in pereopods 5 and 6. Urosome and telson. Uropod 1: peduncle subequal in length to inner ramus, medial margin with 1 RS distally, distal margin with close row of short RS; inner ramus lateral margin with spaced row of short RS, medial margin with sparse RS; outer ramus marginally shorter than inner. Uropod 2: peduncle with row of short setae; inner ramus nearly twice the length outer ramus, both margins sparse lined with RS; outer ramus, both margins with few short RS. Uropod 3: peduncle short, approx. 0.3 × length of inner ramus, medial and inner margins of both rami with sparse row of short RS. Telson slightly longer than wide, u-shaped emargination 0.2 × lengths, lobes triangular, broadly rounded apically. Coloration. Freshly captured specimen (s) of Epimeria robustoides show distinct red eyes (Fig. 10 A) and some bear orange patches on their bodies. : Published as part of Loerz, Anne, Maas, Elizabeth, Linse, Katrin & Coleman, Charles Oliver, 2009, Do circum-Antarctic species exist in peracarid Amphipoda? A case study in the genus Epimeria Costa, 1851 (Crustacea, Peracarida, Epimeriidae), pp. 91-128 in ZooKeys 18 on pages 100-106, DOI: 10.3897/zookeys.18.103, http://zenodo.org/record/576497 : {"references": ["McCain JC (1971) A new deep-sea species of Epimeria (Amphipoda, Paramphithoidae) from Oregon. Crustaceana 20: 159 - 166.", "De Broyer C, Klages M (1991) A new Epimeria (Crustacea, Amphipoda, Paramphithoidae) from the Weddell Sea. Antarctic Science 3: 159 - 166.", "Coleman CO (1994) A new Epimeria species (Crustacea: Amphipoda: Epimeriidae) and redescription of three other species in the genus from the Antarctic Ocean. Journal of Natural History 28: 555 - 576."]} |
format |
Text |
author |
Loerz, Anne Maas, Elizabeth Linse, Katrin Coleman, Charles Oliver |
author_facet |
Loerz, Anne Maas, Elizabeth Linse, Katrin Coleman, Charles Oliver |
author_sort |
Loerz, Anne |
title |
Epimeria robustoides Loerz & Maas & Linse & Coleman 2009, sp. n. |
title_short |
Epimeria robustoides Loerz & Maas & Linse & Coleman 2009, sp. n. |
title_full |
Epimeria robustoides Loerz & Maas & Linse & Coleman 2009, sp. n. |
title_fullStr |
Epimeria robustoides Loerz & Maas & Linse & Coleman 2009, sp. n. |
title_full_unstemmed |
Epimeria robustoides Loerz & Maas & Linse & Coleman 2009, sp. n. |
title_sort |
epimeria robustoides loerz & maas & linse & coleman 2009, sp. n. |
publisher |
Zenodo |
publishDate |
2009 |
url |
https://dx.doi.org/10.5281/zenodo.3791524 https://zenodo.org/record/3791524 |
long_lat |
ENVELOPE(163.400,163.400,-77.533,-77.533) |
geographic |
Antarctic The Antarctic Weddell Sea Weddell Antarctic Ocean Coleman |
geographic_facet |
Antarctic The Antarctic Weddell Sea Weddell Antarctic Ocean Coleman |
genre |
Antarc* Antarctic Antarctic Ocean Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctic Ocean Weddell Sea |
op_relation |
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op_rights |
Open Access Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC0 |
op_doi |
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ftdatacite:10.5281/zenodo.3791524 2023-05-15T14:00:06+02:00 Epimeria robustoides Loerz & Maas & Linse & Coleman 2009, sp. n. Loerz, Anne Maas, Elizabeth Linse, Katrin Coleman, Charles Oliver 2009 https://dx.doi.org/10.5281/zenodo.3791524 https://zenodo.org/record/3791524 unknown Zenodo http://zenodo.org/record/576497 http://publication.plazi.org/id/FFE8FF9C8E25CD40DB43FF9FFFBB5910 http://zoobank.org/3A6234A8-F3A5-4F43-B4FB-89722D121684 https://zenodo.org/communities/biosyslit https://dx.doi.org/10.3897/zookeys.18.103 http://zenodo.org/record/576497 http://publication.plazi.org/id/FFE8FF9C8E25CD40DB43FF9FFFBB5910 https://dx.doi.org/10.5281/zenodo.3770944 https://dx.doi.org/10.5281/zenodo.3770946 https://dx.doi.org/10.5281/zenodo.3770948 https://dx.doi.org/10.5281/zenodo.3770950 https://dx.doi.org/10.5281/zenodo.3817978 http://zoobank.org/3A6234A8-F3A5-4F43-B4FB-89722D121684 https://dx.doi.org/10.5281/zenodo.3791525 https://zenodo.org/communities/biosyslit Open Access Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 info:eu-repo/semantics/openAccess CC0 Biodiversity Taxonomy Animalia Arthropoda Malacostraca Amphipoda Epimeriidae Epimeria Epimeria robustoides Taxonomic treatment article-journal Text ScholarlyArticle 2009 ftdatacite https://doi.org/10.5281/zenodo.3791524 https://doi.org/10.3897/zookeys.18.103 https://doi.org/10.5281/zenodo.3770944 https://doi.org/10.5281/zenodo.3770946 https://doi.org/10.5281/zenodo.3770948 https://doi.org/10.5281/zenodo.3770950 https://d 2022-02-08T12:07:57Z Epimeria robustoides Lörz & Coleman, sp. n. urn:lsid:zoobank.org:act: 96CEBCCA-C3EB-4219-AC2B-C6E81BD852D1 Figs 2–5 Epimeria robusta. – Bamard, 1958: 108; 1961: 103.– McCain 1971: 161.– De Broyer and Klages 1991: 164.– Coleman 1994: 560. Material examined. Holotype. Ovig. female 40 mm. 72°35.67´5S, 18°8.17´W, depth 604–656 m, collected during the Polarstern cruise ANT III 1985 by Agassiz-trawl, 27.I.1985, station 273. Etymology. The species is named robustoides because of its morphological similarity to Epimeria robusta . Diagnosis. Body (Fig. 2A, B) robust. Posterior margin of pereonites 5–6 with small medial protrusion, pereonite 7 with shallow keel, pereonite 7 and posterior margins of metasome segments 1–2 with an elevation (in lateral view). Metasome segments 1–3 with mid-dorsal keel, metasome segment 3 and urosomite 1 with pointed tooth. Urosomite 3 with shallow mid-dorsal keel. Coxa of pereopods 1–3 tapering distally, apically rounded (Figs 4A, B, E). Propodus of gnathopods 1–2 expanded distally, with well-developed palm. Coxa of pereopod 4 very large, with wide posteroventral angle projecting somewhat ventrally. Pereopod 5 (Fig. 5D) ba- sis with posteromarginal tooth, basis of pereopod 6 with similar tooth but larger, pereopod 7 basis (Fig. 5C) widened proximally, but without tooth, only posterodistal angle pointed. Distribution. Weddell Sea, 604– 656 m. Description. Anterior cephalic margin sinuous, lateral cephalic lobe slightly produced; rostrum same length as head, reaching proximal part of antenna 1 peduncle article 1; eyes present, oval, 0.4 × head height. Pereonite 1 subequal in length to head (excluding rostrum), pereonite 2 approx. 0.75 x length of pereonite 1, pereonites 1 to 6 lacking mid-dorsal or dorsolateral processes; pereonite 7 posterior margin with dorsolateral carina weakly developed; pleonites 1–3 with carinae, pereonite 3 and urosomite 1 with acute mid-dorsal process. Urosomite 2 shortest, lacking mid-dorsal process, urosomite 3 with pointed posterior process. Epimeron. 1 antero- and posteroventral angle rounded; epimeron 2 and 3 posteroventral angle produced. Antenna. 1 peduncle article 1 with 2 small processes; article 2 with no process, shorter than article 1; article 3 shortest; accessory flagellum scale-like; primary flagellum of 45 articles. Antenna 2 articles 1–5 lacking distal processes, flagellum with 53 articles. Mandible. Incisor and lacinia mobilis strongly dentate; molar produced and triturative; palp article 3 densely setose medially, with long stout SS distally. Maxilla 1 medial plate subtriangular, obliquely convex inner margin with 11 stout, plumose SS; lateral plate distal margin oblique, with medially lobate RS; palp strongly exceeding outer plate; palp article 1 short, article 2 slightly curved medially with stout SS distomedially, stout RS distally. Maxilla 2 with long, distally crenulate setae distally on lateral and medial plates. Maxilliped lateral plate broadly rounded distally, medial plate with nodular RS and a row of long plumose SS on medial, anterior face; palp medial margin strongly setose; merus distally slightly expanded; dactyl with serrate medial margin. Pereopods. Gnathopod 1: coxa 1 long and slender, basis linear, slender, posterior margin with numerous fine SS; merus slightly longer than ischium, anterior margin very short, distal margin oblique, posterodistal angle acute, setose; carpus linear, distal half of posterior margin with long SS; propodus slightly expanded distally, anterior margin naked except for distal fringe of short SS, palm finely crenulate, slightly oblique, with cluster of RS defining rounded distal margin, posterior margin with numerous long SS; dactylus slender, slightly curved, posterior margin strongly serrate. Gnathopod 2: coxa 2 wider than coxa 1, basis linear, ischium anterior margin very short, distal margin obliquely articulating with carpus, carpus linear, anterior margin naked except for transverse row of SS distally, posterior margin with numerous stout SS distally; propodus linear, palm almost transverse, rounded, finely crenulated, lined with numerous submarginal RS; dactylus large, not exceeding palm, posterior margin serrate. Pereopod 3: coxa similar to coxa 2, basis linear, anterior and posterior margin finely setulose; merus slightly expanded distally; carpus shorter than merus, anterior margin naked, posterior margin with 6 pairs of RS; propodus naked anteriorly, posterior margin with 9 pairs of RS; dactylus stout, curved. Pereopod 4: coxa much larger than 3, wide posteroventral angle projecting somewhat ventrally; basis to dactylus as for pereopod 3. Pereopod 5: coxa rectangular; basis bearing posteromarginal tooth; merus drawn out posterodistally; carpus slightly widened distally, posterior margin with 7 pairs of RS; propodus linear, posterior margin with 10 pairs of RS; dactylus curved, stout, approx. 0.3 × propodus length. Pereopod 6: coxa anterior half hidden by coxa 5, anterior margin weakly concave, posterior margin slightly drawn out; basis posteromarginal tooth larger than in pereopod 5; merus drawn out posterodistally, ischium to dactylus as in pereopod 5. Pereopod 7: coxa subrectangular; basis widened distally, but without tooth, only posterodistal angle pointed; ischium to dactylus as in pereopods 5 and 6. Urosome and telson. Uropod 1: peduncle subequal in length to inner ramus, medial margin with 1 RS distally, distal margin with close row of short RS; inner ramus lateral margin with spaced row of short RS, medial margin with sparse RS; outer ramus marginally shorter than inner. Uropod 2: peduncle with row of short setae; inner ramus nearly twice the length outer ramus, both margins sparse lined with RS; outer ramus, both margins with few short RS. Uropod 3: peduncle short, approx. 0.3 × length of inner ramus, medial and inner margins of both rami with sparse row of short RS. Telson slightly longer than wide, u-shaped emargination 0.2 × lengths, lobes triangular, broadly rounded apically. Coloration. Freshly captured specimen (s) of Epimeria robustoides show distinct red eyes (Fig. 10 A) and some bear orange patches on their bodies. : Published as part of Loerz, Anne, Maas, Elizabeth, Linse, Katrin & Coleman, Charles Oliver, 2009, Do circum-Antarctic species exist in peracarid Amphipoda? A case study in the genus Epimeria Costa, 1851 (Crustacea, Peracarida, Epimeriidae), pp. 91-128 in ZooKeys 18 on pages 100-106, DOI: 10.3897/zookeys.18.103, http://zenodo.org/record/576497 : {"references": ["McCain JC (1971) A new deep-sea species of Epimeria (Amphipoda, Paramphithoidae) from Oregon. Crustaceana 20: 159 - 166.", "De Broyer C, Klages M (1991) A new Epimeria (Crustacea, Amphipoda, Paramphithoidae) from the Weddell Sea. Antarctic Science 3: 159 - 166.", "Coleman CO (1994) A new Epimeria species (Crustacea: Amphipoda: Epimeriidae) and redescription of three other species in the genus from the Antarctic Ocean. Journal of Natural History 28: 555 - 576."]} Text Antarc* Antarctic Antarctic Ocean Weddell Sea DataCite Metadata Store (German National Library of Science and Technology) Antarctic The Antarctic Weddell Sea Weddell Antarctic Ocean Coleman ENVELOPE(163.400,163.400,-77.533,-77.533) |