WoRMS taxon details
Psathyrometra fragilis (AH Clark, 1907)
430552 (urn:lsid:marinespecies.org:taxname:430552)
accepted
Species
Antedon erythrizon AH Clark, 1907 · unaccepted (synonym)
Antedon fragilis AH Clark, 1907 · unaccepted (basionym)
Psathyrometra alascana AH Clark, 1918 · unaccepted (synonym)
Psathyrometra borealis AH Clark, 1908 · unaccepted (synonym)
Psathyrometra erythrizon (AH Clark, 1907) · unaccepted (synonym)
Psathyrometra profundorum AH Clark, 1908 · unaccepted (synonym)
marine, brackish, fresh, terrestrial
(of Antedon fragilis AH Clark, 1907) Clark, A. H. (1907). Description of new species of recent unstalked crinoids from the North Pacific Ocean. <em>Proceedings of the United States National Museum.</em> 33(1559):69-84. [details]
Holotype USNM 35739
Holotype USNM 35739 [details]
Distribution Pacific Rim from S Japan to Monterey Bay, CA; Gulf of Panama.
Depth range : 439 (possibly 197) to 2903 m
description A species of Psathyrometra with centrodorsal H/D 0.78-1.53 (rarely <0.90); cirrus sockets separated interradially by narrow flat strip with short basal interradial ridge ranging from low but distinct to almost nonexistent. Distal end of oral margin of middle and mid-distal cirrals often extended distally as triangular spine (visible in oral view); penultimate cirral squarish with weak opposing spine. Axil and br2 with concave proximolateral margins, smooth aborally or with very fine spinules. Proximal brachials with moderately or well developed alternating articular tubercles. Distal midaboral margins of middle and distal brachials smooth.
Depth range : 439 (possibly 197) to 2903 m
Distribution Pacific Rim from S Japan to Monterey Bay, CA; Gulf of Panama.
Depth range : 439 (possibly 197) to 2903 m
[details]
Depth range : 439 (possibly 197) to 2903 m
[details]
description A species of Psathyrometra with centrodorsal H/D 0.78-1.53 (rarely <0.90); cirrus sockets separated interradially by narrow flat strip with short basal interradial ridge ranging from low but distinct to almost nonexistent. Distal end of oral margin of middle and mid-distal cirrals often extended distally as triangular spine (visible in oral view); penultimate cirral squarish with weak opposing spine. Axil and br2 with concave proximolateral margins, smooth aborally or with very fine spinules. Proximal brachials with moderately or well developed alternating articular tubercles. Distal midaboral margins of middle and distal brachials smooth.
description A species of Psathyrometra with centrodorsal H/D 0.78-1.53 (rarely <0.90); cirrus sockets separated interradially by narrow flat strip with short basal interradial ridge ranging from low but distinct to almost nonexistent. Distal end of oral margin of middle and mid-distal cirrals often extended distally as triangular spine (visible in oral view); penultimate cirral squarish with weak opposing spine. Axil and br2 with concave proximolateral margins, smooth aborally or with very fine spinules. Proximal brachials with moderately or well developed alternating articular tubercles. Distal midaboral margins of middle and distal brachials smooth.
[details]
[details]
Messing, C.; Gondim, A.I.; Markello, K.; Poatskievick Pierezan, B.; Taylor, K.; Eléaume, M. (2025). World List of Crinoidea. Psathyrometra fragilis (AH Clark, 1907). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=430552 on 2025-05-17
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Nomenclature
original description
(of Antedon erythrizon AH Clark, 1907) Clark, A. H. (1907). Description of new species of recent unstalked crinoids from the North Pacific Ocean. <em>Proceedings of the United States National Museum.</em> 33(1559):69-84. [details]
original description (of Antedon fragilis AH Clark, 1907) Clark, A. H. (1907). Description of new species of recent unstalked crinoids from the North Pacific Ocean. <em>Proceedings of the United States National Museum.</em> 33(1559):69-84. [details]
original description (of Psathyrometra borealis AH Clark, 1908) Clark, A. H. (1908). Descriptions of new species of crinoids, chiefly from the collections made by the U.S. Fisheries steamer "Albatross" at the Hawaiian Islands in 1902; with Remarks on the classification of the Comatulida. <em>Proceedings of the United States National Museum.</em> 34(1608): 209-239. [details]
original description (of Psathyrometra profundorum AH Clark, 1908) Clark, A. H. (1908). Descriptions of new species of crinoids, chiefly from the collections made by the U.S. Fisheries steamer "Albatross" at the Hawaiian Islands in 1902; with Remarks on the classification of the Comatulida. <em>Proceedings of the United States National Museum.</em> 34(1608): 209-239. [details]
original description (of Psathyrometra alascana AH Clark, 1918) Clark, A. H. (1918). The unstalked crinoids of the Siboga Expedition. <em>Siboga Exped.</em> 42b: 1-300, 28 pl., available online at https://www.biodiversitylibrary.org/page/11716783 [details]
basis of record Messing CG, White CM (2001). A revision of the Zenometridae (new rank)(Echinodermata, Crinoidea, Comatulidina). <i>Zoologica Scripta</i> 30(3):159-180 [details]
original description (of Antedon fragilis AH Clark, 1907) Clark, A. H. (1907). Description of new species of recent unstalked crinoids from the North Pacific Ocean. <em>Proceedings of the United States National Museum.</em> 33(1559):69-84. [details]
original description (of Psathyrometra borealis AH Clark, 1908) Clark, A. H. (1908). Descriptions of new species of crinoids, chiefly from the collections made by the U.S. Fisheries steamer "Albatross" at the Hawaiian Islands in 1902; with Remarks on the classification of the Comatulida. <em>Proceedings of the United States National Museum.</em> 34(1608): 209-239. [details]
original description (of Psathyrometra profundorum AH Clark, 1908) Clark, A. H. (1908). Descriptions of new species of crinoids, chiefly from the collections made by the U.S. Fisheries steamer "Albatross" at the Hawaiian Islands in 1902; with Remarks on the classification of the Comatulida. <em>Proceedings of the United States National Museum.</em> 34(1608): 209-239. [details]
original description (of Psathyrometra alascana AH Clark, 1918) Clark, A. H. (1918). The unstalked crinoids of the Siboga Expedition. <em>Siboga Exped.</em> 42b: 1-300, 28 pl., available online at https://www.biodiversitylibrary.org/page/11716783 [details]
basis of record Messing CG, White CM (2001). A revision of the Zenometridae (new rank)(Echinodermata, Crinoidea, Comatulidina). <i>Zoologica Scripta</i> 30(3):159-180 [details]
Taxonomy
source of synonymy
Clark, A. H. (1907). New genera of recent free crinoids. <em>Smithsonian Miscellaneous Collection.</em> 50(29): 343-364., available online at https://www.biodiversitylibrary.org/page/30049299 [details]
Other
context source (Deepsea)
Intergovernmental Oceanographic Commission (IOC) of UNESCO. The Ocean Biogeographic Information System (OBIS), available online at http://www.iobis.org/ [details]
additional source Clark, A. H., Clark, A. M. (1967). A monograph of the existing crinoids. <em>Bulletin of the United States National Museum.</em> (82): 1-860. [details]
additional source Clark, A. H., Clark, A. M. (1967). A monograph of the existing crinoids. <em>Bulletin of the United States National Museum.</em> (82): 1-860. [details]
Present Present in aphia/obis/gbif/idigbio Inaccurate Introduced: alien Containing type locality
Holotype USNM 35739 [details]
From editor or global species database
Distribution Pacific Rim from S Japan to Monterey Bay, CA; Gulf of Panama.Depth range : 439 (possibly 197) to 2903 m
[details]
description A species of Psathyrometra with centrodorsal H/D 0.78-1.53 (rarely <0.90); cirrus sockets separated interradially by narrow flat strip with short basal interradial ridge ranging from low but distinct to almost nonexistent. Distal end of oral margin of middle and mid-distal cirrals often extended distally as triangular spine (visible in oral view); penultimate cirral squarish with weak opposing spine. Axil and br2 with concave proximolateral margins, smooth aborally or with very fine spinules. Proximal brachials with moderately or well developed alternating articular tubercles. Distal midaboral margins of middle and distal brachials smooth.
[details]
| Language | Name | |
|---|---|---|
| Japanese | ミスジヒメウミシダネムロクボミウミシダ［ミスジヒメウミシダ］ネムロクボミウミシダ [from synonym] | [details] |
To Barcode of Life (1 barcode)
To Biodiversity Heritage Library (11 publications)
To Biodiversity Heritage Library (6 publications) (from synonym Psathyrometra erythrizon (AH Clark, 1907))
To Biodiversity Heritage Library (9 publications) (from synonym Psathyrometra borealis AH Clark, 1908)
To Biological Information System for Marine Life (BISMaL) (from synonym Psathyrometra erythrizon (AH Clark, 1907))
To Biological Information System for Marine Life (BISMaL)
To Biological Information System for Marine Life (BISMaL) (from synonym Antedon fragilis AH Clark, 1907)
To Biological Information System for Marine Life (BISMaL) (from synonym Antedon erythrizon AH Clark, 1907)
To European Nucleotide Archive, ENA (Psathyrometra fragilis)
To GenBank (5 nucleotides; 2 proteins)
To USNM Invertebrate Zoology Echinodermata Collection (1 record) (from synonym Psathyrometra erythrizon (AH Clark, 1907))
To USNM Invertebrate Zoology Echinodermata Collection (6 records)
To USNM Invertebrate Zoology Echinodermata Collection (Holotype USNM 22613) (from synonym Antedon erythrizon AH Clark, 1907)
To USNM Invertebrate Zoology Echinodermata Collection (Holotype USNM 22614) (from synonym Antedon fragilis AH Clark, 1907)
To USNM Invertebrate Zoology Echinodermata Collection (Holotype USNM 22669) (from synonym Psathyrometra profundorum AH Clark, 1908)
To USNM Invertebrate Zoology Echinodermata Collection (Holotype USNM 22670) (from synonym Psathyrometra borealis AH Clark, 1908)
To ITIS
To Biodiversity Heritage Library (11 publications)
To Biodiversity Heritage Library (6 publications) (from synonym Psathyrometra erythrizon (AH Clark, 1907))
To Biodiversity Heritage Library (9 publications) (from synonym Psathyrometra borealis AH Clark, 1908)
To Biological Information System for Marine Life (BISMaL) (from synonym Psathyrometra erythrizon (AH Clark, 1907))
To Biological Information System for Marine Life (BISMaL)
To Biological Information System for Marine Life (BISMaL) (from synonym Antedon fragilis AH Clark, 1907)
To Biological Information System for Marine Life (BISMaL) (from synonym Antedon erythrizon AH Clark, 1907)
To European Nucleotide Archive, ENA (Psathyrometra fragilis)
To GenBank (5 nucleotides; 2 proteins)
To USNM Invertebrate Zoology Echinodermata Collection (1 record) (from synonym Psathyrometra erythrizon (AH Clark, 1907))
To USNM Invertebrate Zoology Echinodermata Collection (6 records)
To USNM Invertebrate Zoology Echinodermata Collection (Holotype USNM 22613) (from synonym Antedon erythrizon AH Clark, 1907)
To USNM Invertebrate Zoology Echinodermata Collection (Holotype USNM 22614) (from synonym Antedon fragilis AH Clark, 1907)
To USNM Invertebrate Zoology Echinodermata Collection (Holotype USNM 22669) (from synonym Psathyrometra profundorum AH Clark, 1908)
To USNM Invertebrate Zoology Echinodermata Collection (Holotype USNM 22670) (from synonym Psathyrometra borealis AH Clark, 1908)
To ITIS
