Parvamussium ina

(Dautzenberg & Bavay, 1912)



Figured lectotype


Original name   Amussium ina Dautzenberg & Bavay, 1912
Autoreference   Dautzenberg & Bavay, 1912: 32, pl. 28, figs 18-21.
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 lectotype (pr: H 14 mm, L 14 mm) Zoological Museum, University of Amsterdam, Amsterdam (ZMA Moll. 3.12.011), designated by Dijkstra & Kastoro (1997: 248). Type locality: Indonesia, Sumbawa, N-coast, Saleh Bay, 08*19'S, 117*41'E, 274 m, alive, fine sandy mud, 14.02.1900 ("Siboga" stn 312).

  Shell up to ca. 14 mm high, fragile, transparent, weakly inflated, left valve slightly more convex than right valve, circular, equivalve, nearly equilateral, auricles unequal in size and shape, colour of left valve creamy or brownish with numerous reddish maculations and small whitish streaks, right valve paler without maculations.

  Both valves smooth, fine commarginal striae on right valve. Marginal apron very fragile. Internal ribs 6 and 2 auricular ribs. Byssal notch and ctenolium lacking.



Indonesia (TL)

Habitat  Living bathyally on soft muddy sand bottom assemblages.