PROPEAMUSSIIDAE  

Parvamussium vesiculatum

Dijkstra, 1995

Figures

 

       rv                     Holotype                           lv

Original name   Parvamussium vesiculatum Dijkstra, 1995
Autoreference   Dijkstra, 1995: 37, figs 59-62, 93-96.
Reference   Dijkstra, H.H., 1995. Bathyal Pectinoidea (Bivalvia: Propeamussiidae, Entoliidae, Pectinidae) from New Caledonia and adjacent areas. In: P. Bouchet (ed.), Résultats des Campagnes MUSORSTOM, volume 14. - Mémoires du Muséum National d'Histoire Naturelle 167: 9-73, figs 1-154.
Type data   Holotype (pr: H 6.0 mm, L 5.8 mm, D 1.8 mm) Museum National d'Histoire Naturelle, Paris (MNHN). Type locality: SE New Caledonia, 22*47'S, 167*14'E, 440-450 m, alive (BIOCAL stn DW 44).
Description

  Shell small up to ca. 6 mm high, fragile, semi-transparent white, weakly inflated, nearly circular, left valve slightly more convex than right valve, inequivalve, somewhat inequilateral, auricles unequal in size, umbonal angle ca. 95 degrees.

  Left valve sculptured with widely spaced, commarginal lirae with strongly developed nodules or hollow scales. Auricles with commarginal lamellae. Right valve with regularly narrow spaced, delicate commarginal lirae. Byssal notch relatively deep, byssal fasciole narrow. Internal riblets rudimentary (5 anteriorly and 4 posteriorly). Right valve with large white spot at centre of disc. Marginal apron (below the interior riblets) of right valve often broken off.

Distribution

 

E Taiwan, Philippines, Indonesia, Coral Sea, New Caledonia (TL)

Habitat   Living bathyally on soft bottom assemblages.