| PROPEAMUSSIIDAE | Parvamussium octodecimliratum (Melvill & Standen, 1907) |
| Figure(s) |
lv (exterior) rv (interior) Holotype
|
| Original name | Amussium octodecimliratum Melvill & Standen, 1907 |
| Autoreference | Melvill & Standen, 1907: 147, figs 17-17a. |
| Reference | Melvill, J.C. & R. Standen, 1907. The marine Mollusca of the Scottish National Antarctic Expedition. - Transactions of the Royal Society of Edinburgh 46: 119-157. |
| Type data | Holotype (pr: H 9.8 mm, L 12.2 mm, D 3.1 mm) The Royal Scottish Museum at Edinburgh (RSM 1921.143.708).Type locality: Antarctic, Weddell Sea, 67*33'S, 36*35'W, 4573 m, alive, trawl ("Scotia" stn 291). |
| Description | Shell small up to ca. 10 mm high, fragile, semi-transparent whitish, weakly inflated, subcircular, wider than high, inequivalve, equilateral, auricles slightly equal in size. Left valve sculptured with radial threads and delicte commarginal lamellae, cancellated with quadrate interstices. Right valve with closely spaced, fine commarginal lamellae. Internal prominent riblets 18, regularly arranged. Byssal notch weak, byssal fasciole narrow. |
| Distribution |
Antarctica (TL) |
| Habitat | Living abyssally on soft bottom assemblages. |
