Ctena bella ( Conrad, 1837 )

Raines, Bret & Huber, Markus, 2012, 3217, Zootaxa 3217, pp. 1-106 : 48-49

publication ID	11755334
DOI	https://doi.org/10.5281/zenodo.5250663
persistent identifier	https://treatment.plazi.org/id/03F187DA-6F78-FFBC-A394-8C61FEFEFE02
treatment provided by	Felipe (2021-08-24 00:48:27, last updated by Plazi 2023-11-04 14:47:06)
scientific name	Ctena bella ( Conrad, 1837 )
status

Treatment

Ctena bella ( Conrad, 1837) View in CoL

Figures 24 A–D

Lucina bella Conrad, 1837: p. 254 View in CoL , pl. 19, fig. 11.

Ctena bella ( Conrad, 1837) View in CoL — Dall et al., 1938: p. 129, pl. 35, figs. 1–8; Kay, 1979: p. 543, figs. 176 A–D; Preece, 1995: p. 350; Tröndlé & Boutet, 2009: p. 7; Severns, 2011: p. 468, pl. 214, fig. 2.

Codakia (Epicodakia) bella ( Conrad, 1837) View in CoL — Rehder, 1980: p. 110.

Ctena bella View in CoL (Conrad, [sic] 1834)— Brook & Marshall, 1998: p. 212; Spencer et al., 2011: p. 1.

Epicodakia bella ( Conrad, 1837) View in CoL — Okutani, 2000: p. 929, pl. 462, fig. 5.

Material examined. Several hundred articulated specimens and single valves from EI and SyG (BK), plus specimens from the Hawaiian Islands ( MHU), Marquesas Islands ( MHU), Australia ( MHU) and Pitcairn Island (BK).

Diagnosis. Shell small (up to 20 mm in length) broadly ovate to suborbicular shape, equivalve, inequilateral, not fragile. Umbones somewhat elevated; lunule moderately impressed and elongate. Exterior surface of rounded radiating ribs crossed by commarginal ridges forming low elongate nodules on the ribs. Interior muscle scars unequal, with pallial sinus running nearly continuous; margin crenulate. Hinge with two cardinals, which are bifid in the right posterior and left anterior, and opposing laterals in each valve. Color creamy white to pale yellow.

Remarks. The EI specimens conform well to the Hawaiian material. Dall et al. (1938) corrected the erroneous original type locality for C. bella from San Diego to the Hawaiian Islands. The Hawaiian species was accepted by J. Taylor, (pers. comm., 2010) to represent bella . The Japanese Ctena delicatula ( Pilsbry, 1904) , is a similar, but a morphologically distinct species and most noticeable in adult valves by having finer radial ribs and fewer commarginal ridges.

Habitat. Commonly found at many locations around EI and SyG, in sand and rubble, from 10–50 m.

Distribution. Ctena bella is widely distributed throughout the Indo-Pacific, ranging from the Hawaiian Islands to the Kermadec Islands to include the Society Islands, Marquesas Islands, Tuamotu Archipelago, Gambier Islands, Austral Islands, eastern Australia, Norfolk Island, and Pitcairn Islands, as well as Easter and Salas y Gómez Islands— E5.

References

Brook, F. J. & Marshall, B. A. (1998) Appendix: Checklist of benthic coastal marine chitons, bivalves, gastropods and cephalopods of the northern Kermadec Islands. In. Brook, F. J. (1998) The coastal molluscan fauna of the northern Kermadec Islands, Southwest Pacific Ocean. Journal of the Royal Society of New Zealand, 28 (2), 185 - 233.

Conrad, T. A. (1837) Descriptions of new marine shells, from upper California. Journal of the Academy of Natural Sciences of Philadelphia, 7, 227 - 268.

Dall, W. H., Bartsch, P. & Rehder, H. A. (1938) A manual of the recent and fossil marine pelecypod mollusks of the Hawaiian Islands. Bernice P. Bishop Museum Bulletin, 153, 1 - 33.

Kay, E. A. (1979) Hawaiian Marine Shells. Reef and shore fauna of Hawaii Sec. 4: Mollusca. Oahu, Hawaii (Bishop Museum Press), 653 pp.

Okutani, T., (Ed) (2000) Marine Mollusks in Japan. Tokai University Press, Tokyo, Japan, 1224 pp.

Pilsbry, H. A. (1904). New Japanese marine Mollusca. Pelecypoda. Proceedings of the Academy of Natural Sciences, Philadelphia, 56, 550 - 561.

Preece, R. C. (1995) The composition and relationships of the marine molluscan fauna of the Pitcairn Islands. Biological Journal of the Linnean Society, 56, 339 - 358.

Rehder, H. A. (1980) The marine mollusks of Easter Island (Isla de Pascua) and Sala y Gomez. Smithsonian Contributions to Zoology, Number 289, 167 pp.

Severns, M. (2011) Shells of the Hawaiian Islands. The Sea Shells. ConchBooks, Hackenheim, Germany, 564 pp.

Spencer, H. G., Willan, R. C., Marshall, B. & Murray, T. J. (2011) Checklist of the recent Mollusca recorded from the New Zealand exclusive economic zone. Available from: http: // www. molluscs. otago. ac. nz / index. html (May 2011).

Trondle, J. & Boutet, M. (2009) Inventory of marine molluscs of French Polynesia. Atoll Research Bulletin, 570, 1 - 87.