Amphilepis Ljungman 1867
Amphilepis Ljungman, 1867 Diagnosis: Flat disc covered by thin, overlapping scales; obvious radial shields; oral shields usually triangular, sometimes diamond or heart shaped; madreporite often distinct; usually two oral papillae per side of jaw, often with an additional apical papilla (or ventralmo...
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ftzenodo:oai:zenodo.org:6201226 2024-09-15T17:43:51+00:00 Amphilepis Ljungman 1867 Mills, Sadie O'Hara, Timothy 2010-12-31 https://doi.org/10.5281/zenodo.6201226 http://treatment.plazi.org/id/039687D7D97AFFCFFF3A4143FBDFFB28 unknown Zenodo https://doi.org/10.5281/zenodo.196098 http://publication.plazi.org/id/FFAFFFAFD97BFFCEFFAD4061FF8BFFF7 https://sibils.text-analytics.ch/search/collections/plazi/039687D7D97AFFCFFF3A4143FBDFFB28 https://zenodo.org/communities/biosyslit https://doi.org/10.5281/zenodo.6201225 https://doi.org/10.5281/zenodo.6201226 oai:zenodo.org:6201226 http://treatment.plazi.org/id/039687D7D97AFFCFFF3A4143FBDFFB28 info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode Amphilepis neozelandica sp. nov., the first record of the Amphilepididae in New Zealand waters (Echinodermata: Ophiuroidea), pp. 47-54 in Zootaxa, 2514, 48, (2010-12-31) Biodiversity Taxonomy Animalia Echinodermata Ophiuroidea Ophiurida Amphilepididae Amphilepis info:eu-repo/semantics/other 2010 ftzenodo https://doi.org/10.5281/zenodo.620122610.5281/zenodo.19609810.5281/zenodo.6201225 2024-07-26T13:46:30Z Amphilepis Ljungman, 1867 Diagnosis: Flat disc covered by thin, overlapping scales; obvious radial shields; oral shields usually triangular, sometimes diamond or heart shaped; madreporite often distinct; usually two oral papillae per side of jaw, often with an additional apical papilla (or ventralmost tooth) and/or 1 or 2 distal papillae adjacent to the second oral tentacle pore; second oral tentacle pore opening between first ventral arm plate, outer end of oral shield and oral plates; arms dorso-ventrally flattened and slender; lateral arm plates bearing 3 bluntly pointed arm spines; large tentacle pores, either without tentacle scales, or bearing 1 or 2 per pore. Geographic range: North Atlantic, SW Iceland, Europe, Mediterranean Sea, North and South Africa, Madagascar, Indonesia, Japan, North Pacific, South America, New Zealand, and Antarctica. Bathymetric range: 18–4829 m. Type species: Amphilepis norvegica (Ljungman, 1865). Remarks: The jaw morphology, occasional lack of an apical papilla, and disc scaling in Amphilepis creates a superficial resemblance to some genera in the Amphiuridae. For example, Ophiomonas D’yakonov, 1952 differs from Amphilepis only in having the inner oral papillae more infradental in position, the first oral tentacle scale positioned further into the slit, and the presence of a distal oral papilla adjacent to the second oral tentacle pore (Clark 1970). Clark (1970) concluded that the Amphilepididae should be reduced to the rank of subfamily of Amphiuridae. However, the only cladistic treatment of the Ophiuroidea to date infers Amphilepis to be in a separate superfamily, sister to all other families in the infraorder Gnathophiurina (Smith et al. 1995). Clark (1970) also suggests that Amphilepis is composed of two groups, 1) a group with relatively narrow teeth, including A. norvegica , A. ingolfiana , A. mobilis , A. platytata and A. scutata , and 2) a group with broad, squared-off teeth with the ventralmost having a median cusp, including A. gymnopora , A. papyracea , A. patens and ... Other/Unknown Material Antarc* Antarctica Iceland North Atlantic Zenodo |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Biodiversity Taxonomy Animalia Echinodermata Ophiuroidea Ophiurida Amphilepididae Amphilepis |
spellingShingle |
Biodiversity Taxonomy Animalia Echinodermata Ophiuroidea Ophiurida Amphilepididae Amphilepis Mills, Sadie O'Hara, Timothy Amphilepis Ljungman 1867 |
topic_facet |
Biodiversity Taxonomy Animalia Echinodermata Ophiuroidea Ophiurida Amphilepididae Amphilepis |
description |
Amphilepis Ljungman, 1867 Diagnosis: Flat disc covered by thin, overlapping scales; obvious radial shields; oral shields usually triangular, sometimes diamond or heart shaped; madreporite often distinct; usually two oral papillae per side of jaw, often with an additional apical papilla (or ventralmost tooth) and/or 1 or 2 distal papillae adjacent to the second oral tentacle pore; second oral tentacle pore opening between first ventral arm plate, outer end of oral shield and oral plates; arms dorso-ventrally flattened and slender; lateral arm plates bearing 3 bluntly pointed arm spines; large tentacle pores, either without tentacle scales, or bearing 1 or 2 per pore. Geographic range: North Atlantic, SW Iceland, Europe, Mediterranean Sea, North and South Africa, Madagascar, Indonesia, Japan, North Pacific, South America, New Zealand, and Antarctica. Bathymetric range: 18–4829 m. Type species: Amphilepis norvegica (Ljungman, 1865). Remarks: The jaw morphology, occasional lack of an apical papilla, and disc scaling in Amphilepis creates a superficial resemblance to some genera in the Amphiuridae. For example, Ophiomonas D’yakonov, 1952 differs from Amphilepis only in having the inner oral papillae more infradental in position, the first oral tentacle scale positioned further into the slit, and the presence of a distal oral papilla adjacent to the second oral tentacle pore (Clark 1970). Clark (1970) concluded that the Amphilepididae should be reduced to the rank of subfamily of Amphiuridae. However, the only cladistic treatment of the Ophiuroidea to date infers Amphilepis to be in a separate superfamily, sister to all other families in the infraorder Gnathophiurina (Smith et al. 1995). Clark (1970) also suggests that Amphilepis is composed of two groups, 1) a group with relatively narrow teeth, including A. norvegica , A. ingolfiana , A. mobilis , A. platytata and A. scutata , and 2) a group with broad, squared-off teeth with the ventralmost having a median cusp, including A. gymnopora , A. papyracea , A. patens and ... |
format |
Other/Unknown Material |
author |
Mills, Sadie O'Hara, Timothy |
author_facet |
Mills, Sadie O'Hara, Timothy |
author_sort |
Mills, Sadie |
title |
Amphilepis Ljungman 1867 |
title_short |
Amphilepis Ljungman 1867 |
title_full |
Amphilepis Ljungman 1867 |
title_fullStr |
Amphilepis Ljungman 1867 |
title_full_unstemmed |
Amphilepis Ljungman 1867 |
title_sort |
amphilepis ljungman 1867 |
publisher |
Zenodo |
publishDate |
2010 |
url |
https://doi.org/10.5281/zenodo.6201226 http://treatment.plazi.org/id/039687D7D97AFFCFFF3A4143FBDFFB28 |
genre |
Antarc* Antarctica Iceland North Atlantic |
genre_facet |
Antarc* Antarctica Iceland North Atlantic |
op_source |
Amphilepis neozelandica sp. nov., the first record of the Amphilepididae in New Zealand waters (Echinodermata: Ophiuroidea), pp. 47-54 in Zootaxa, 2514, 48, (2010-12-31) |
op_relation |
https://doi.org/10.5281/zenodo.196098 http://publication.plazi.org/id/FFAFFFAFD97BFFCEFFAD4061FF8BFFF7 https://sibils.text-analytics.ch/search/collections/plazi/039687D7D97AFFCFFF3A4143FBDFFB28 https://zenodo.org/communities/biosyslit https://doi.org/10.5281/zenodo.6201225 https://doi.org/10.5281/zenodo.6201226 oai:zenodo.org:6201226 http://treatment.plazi.org/id/039687D7D97AFFCFFF3A4143FBDFFB28 |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5281/zenodo.620122610.5281/zenodo.19609810.5281/zenodo.6201225 |
_version_ |
1810491042913320960 |