PROPEAMUSSIIDAE  

Propeamussium lucidum

(Jeffreys in Thomson, 1873)

Figure(s)

               

Lectotype

 

Original name   Pleuronectia lucida Jeffreys in Thomson, 1873
Autoreference   Jeffreys in Thomson, 1873: 464, fig. 78.
Reference   Thomson, C.W., 1873. The depths of the sea. Macmillan, London. xx + 527 pp.
Type data   Lectotype (pr: H 9.8 mm, L 9.5 mm) The Natural History Museum, London (BMNH 1885.11.5.590), designated by Dijkstra & Gofas (2004: 36). Type locality: E Atlantic, SW of Ireland, 49*01'N, 11*56'W, 1019 m, ooze, sand, 26.06.1869 ("Porcupine" 1869 stn 39).
Description

  Shell up to ca. 14 mm high, fragile, semi-transparent, weakly inflated, left valve slightly more convex than right valve, oval, inequivalve, nearly equilateral, auricles unequal in size and shape, colour whitish.

  Left valve smooth (typical), or weakly radially and/or commarginally sculptured.

  Right valve with commarginal sculpture. Internal ribs 9 (typical), rarely 8 or 10, with 2 auricular riblets and interstitial rudimentary riblets. Byssal notch very small, ctenolium lacking.

Distribution

 

SW Ireland(TL), E Atlantic (ca. 53*N-15*N)

Habitat  Living bathyally and upper abyssally on soft bottom assemblages.