PECTINIDAE

Parvamussium kauaium

(Dall, Bartsch & Rehder, 1938)

Figures

 

    Holotype                                                                   © Dr E. Strong - NMNH

                          

Original name   Propeamussium kauaium Dall, Bartsch & Rehder, 1938
Autoreference   Dall, Bartsch & Rehder, 1938: 80, pl. 19, figs 4-7, pl. 20, figs 1-2.
Reference   Dall, W.H., P. Bartsch & H.A. Rehder, 1939. A manual of the Recent and fossil marine pelecypod mollusks of the Hawaiian Islands. - Bulletin of the Bernice P. Bishop Museum 153: i-iv, 1-233, pls 1-58.
Type data   Holotype (pr: H 10.0 mm, L 9.9 mm, D 2.0 mm) Unites States National Museum (USNM 173218). Type locality: Hawaiian Islands, near Kauai, 22*03'N, 159*30'W, 684-730 m, alive, dredged, coral, sand, foraminifera, rock, 21.vi.1902 (USBFS "Albatross" stn 4022).
Description

  Shell small up to ca. 10 mm high, fragile, semi-transparent white, weakly inflated, circular, inequivalve, almost equilateral, auricles unequal in size and shape, umbonal angle ca. 100 degrees.

  Left valve sculptured with widely spaced, hollow commarginal cords with delicate closely spaced intercalated radial threads. Right valve with closely spaced, commarginal lirae. Internal riblets 10, extending to apron. Byssal notch relatively deep.

Distribution

 

Hawaiian Islands (TL)

Habitat   Living bathyally on sand with coral rubble, rocks and foraminifera.