PROPEAMUSSIIDAE  

Propeamussium lacteum

(Dautzenberg & Bavay, 1912)

Figure(s)

               

Holotype

 

Original name   Amussium lacteum Dautzenberg & Bavay, 1912
Autoreference   Dautzenberg & Bavay, 1912: 31, pl. 27, figs 11-14.
Reference   Dautzenberg, P. & A. Bavay, 1912. Les Lamellibranches de l'ExpŽdition du "Siboga": 1. PectinidŽs. - "Siboga" Mon. 53b: 1-41, pls 27-28.
Type data   Figured holotype (pr: H 6 mm, L 6 mm) Zoological Museum, University of Amsterdam, Amsterdam (ZMA Moll. 3.12.010). Type locality: Indonesia, Moluccas, Halmahera Sea, 0*12.6'S, 129*48'E, 845 m, dead, fine grey mud, 12.08.1899 ("Siboga" stn 151).
Description

  Shell up to ca. 6 mm high, rather solid, opaque, weakly inflated, left valve slightly more convex than right valve, circular, equivalve, nearly equilateral, auricles smooth, nearly equal in size and shape, colour whitish.

  Left valve with numerous, irregularly spaced, weak and delicate radial lirae and very weak commarginal lirae.

  Right valve with commarginal sculpture. Internal ribs 8 with 2 auricular riblets. Byssal notch, byssal fasciole and ctenolium lacking.

Distribution

 

Halmahera Sea (TL)

Habitat  Living bathyally on soft bottom assemblages.