Cryptopecten, Dall, Bartsch & Rehder, 1938
publication ID |
https://doi.org/10.5252/z2010n2a6 |
DOI |
https://doi.org/10.5281/zenodo.4521114 |
persistent identifier |
https://treatment.plazi.org/id/D75887E7-FFCF-0750-170C-FF5DF936FB3A |
treatment provided by |
Felipe (2021-02-08 18:39:48, last updated 2024-11-26 04:04:24) |
scientific name |
Cryptopecten |
status |
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Cryptopecten sp. A
( Fig. 5A View FIG )
MATERIAL EXAMINED. — Récif Neilson. BENTHAUS, stn DW 1925, 27°00’S, 146°05’W, 560-790 m, 1 rv.
DISTRIBUTION. — Austral Islands, only a single valve at 560 m depth.
REMARKS
The present specimen somewhat resembles Cryptopecten phrygium ( Dall, 1886) , from the tropical western Atlantic, in having an identical sculpture of longitudinal hollow sections on both sides of the primary radial ribs and intercostal commarginal lamellae. A similar sculpture also exists in Cryptopecten vesiculosus (Dunker, 1877) , from southern Japan, and in C. bullatus and C. nux ( Hayami 1984) . A delicate shell layer covers these hollow sections ( Hayami 1984: pl. 13, fig. 1c), but in eroded specimens this shell layer is often lacking and a longitudinal groove appears on each side of the main ribs. The present specimen is considerably larger in size than the other Cryptopecten species ( Cryptopecten sp. A 57 mm, C. phrygium 43 mm, C. vesiculosus 34 mm, C. bullatus 25 mm, and C. nux 20 mm in height) ( Hayami 1984), and strongly posteriorly oblique (other Cryptopecten species are more circular). Because a single valve is available, this new species is not named here.
DALL W. H. 1886. - Report on the results of dredging [...] in the Gulf of Mexico by the U. S. coast guard survey steamer Blake [...]. Report on the mollusca. Part 1. Branchiopodes and Pelecypodes. Bulletin of the Museum of Comparative Zoology, Harvard College 12 (6): 171 - 318.
HAYAMI I. 1984. - Natural history and evolution of Cryptopecten (a Cenozoic-Recent pectinid genus). The University Museum, The University of Tokyo, Bulletin 24: 1 - 149.
FIG. 5. — A, Cryptopecten sp. A, external view of the right valve; B, Anguipecten lamberti (Souverbie, 1874), external view of the left valve; C, Anguipecten picturatus Dijkstra, 1995, external view of the left valve; D, Anguipecten superbus (Sowerby II, 1842), external view of the right valve; E, Glorichlamys elegantissima (Deshayes, 1863), external view of the right valve; F, Gloripallium spiniferum, (Sowerby I, 1835), external view of the right valve; G, H, Mirapecten mirificus (Reeve, 1853), external views of the left and right valves.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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SuperFamily |
Pectinoidea |
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