Species Account

Cuspidaria parva Verrill & Bush, 1898

Verticordioidea : Cuspidariidae

Tebble name: n/a
Smith & Heppell name: Cuspidaria parva Verrill & Bush, 1898

To size: To 4mm. Shell Structure: Thin, fragile, hyaline. Equivalve: Inequivalve, RV slightly larger, most noticeable along the posterior ventral margin. Equilateral: Equilateral, beaks close to midline. Tumidity: Moderate. Outline: Body of shell subovate; anterior evenly rounded and continuous with more broadly curved ventral. Rostrum almost as long as body; dorsal margin straight, sloping gently; ventral margin shallowly concave corresponding with shallow sulcus between rostrum and body.

Sculpture: Apparently smooth over body but is microscopically punctate; rostrum with a few faint radial striations over weak concentric lines. Margin: Inner margin smooth. Ligament: Internal, small beneath beaks. Hinge: RV with a prominent posterior lateral flange. Pallial Musculature: Obscure. Periostracum: Indistinct except over rostrum where it is thin and weakly lamellar. Colour: White, semi-transparent.

Distribution & Ecology

A bathyal and upper abyssal species recorded mostly from 500-2500m throughout the Atlantic Ocean (Allen & Morgan, 1981). Here from Rockall Trough and Biscay Basin.

Depth Range
Bathyal (500 - 2000m)
Abyssal Rise (2000 - 4000m)

Additional Information & Related Species


Listed are literature citing Cuspidaria parva Verrill & Bush, 1898. Reference containing the species Type Description is highlighted.

Allen J A & Morgan R E 1981. The functional morphology of Atlantic deep water species of the families Cuspidariidae and Poromyidae (Bivalvia): an analysis of the evolution of the septibranch condition. Philosophical Transactions of the Royal Society of London Series B. 294: 413-546.
Verrill A E & Bush K J 1898. Revision of the deep water Mollusca of the Atlantic Coast of North America with descriptions of new genera and species Part 1 Bivalvia. Proceedings of the United States National Museum. 20: 775-901.


  • Conchological Society of Great Britain & Ireland
    Provides resources for understanding, identifying, recording, and conserving molluscs
    Check List of European Marine Mollusca
  • MarLIN
    The Marine Life Information Network for Britain and Ireland (MarLIN) provides information for marine environmental management, protection and education. It is a centre of excellence in spatially based and time-series marine biological information and supports good stewardship in the marine environment.
  • NBN Gateway
    National Biodiversity Network's Gateway. Use it to explore UK biodiversity data, as contributed by participating data providers.
  • BivAToL
  • MarBEF
  • Malacological Society
  • Unitas Malacologica
  • Census of Marine Life
  • MarBEF
    MarBEF, a network of excellence funded by the European Union and consisting of 94 European marine institutes, is a platform to integrate and disseminate knowledge and expertise on marine biodiversity, with links to researchers, industry, stakeholders and the general public.

Image Gallery

Record last modified: 22/03/2016