PROPEAMUSSIIDAE  

Parvamussium virgatum

Dijkstra, 1991

Figure(s)

    

 Holotype (lv)

Original name   Parvamussium virgatum Dijkstra, 1991
Autoreference   Dijkstra, 1991: 20, figs 62-65.
Reference

  Dijkstra, H.H., 1991. A contribution to the knowledge of the pectinacean Mollusca (Bivalvia:

Propeamussiidae, Entoliidae, Pectinidae) from the Indonesian Archipelago. - Zoologische Verhandelingen 271: 1-57, figs 1-91. Leiden.

Type data

  Holotype (lv: H 10.5 mm, L 10.5 mm) Naturalis - National Museum of Natural History, Leiden (RMNH 56556). Type locality: Indonesia, Banda Sea, NW of Binongko, Tukang Besi Islands, 5*52.5'S, 123*58.5'E, 250-290 m, dead, coarse calcareous sand, 10.ix.1984 (SNELLIUS-II stn 4.033).

Description

  Shell up to ca. 10 mm high, weakly inflated, nearly circular, inequivalve, slightly equilateral, auricles unequal in size and shape, umbonal angle ca. 110 degrees, colour whitish, inside glossy.

  Left valve with glossy umbonal region and numerous delicate radial riblets. Near ventral margin commarginal lamellae. Delicate closely spaced commarginal lamellae on auricles. Ten internal riblets commence in late juvenile stage and extend to the submarginal region.

Distribution

 

Indonesia, Banda Sea (TL)

Habitat Shells at bathyal depths on gravel and calcareous sand.