Species Account

Draculamya porobranchiata Oliver & Lützen, 2011

Galeommatoidea : Montacutidae

Tebble name: n/a
Smith & Heppell name: n/a

To size: To 2mm. Shell Structure: Thin, fragile. Equivalve: Equivalve. Equilateral: Slightly inequilateral, beaks a little behind midline. Tumidity: Inflated. Outline: Subcircular, slightly oblique and expanded anteriorly, all margins rounded. The anterior dorsal margin slightly longer than posterior dorsal.

Sculpture: Sculpture of commarginal lines and growth stops of varying intensity, some prominently lined, some apparently smooth. Margin: Inner margin smooth. Ligament: Internal on a shallow resilifer set obliquely between the cardinal tooth and the posterior laterals. Hinge: Hinge relatively strong; right valve with a single cardinal peg and single anterior and posterior laterals; left valve lacking cardinal teeth, with single anterior and posterior lateral teeth as extensions of the shell edge. Pallial Musculature: Scars weakly impressed, indistinct but adductor muscles subequal, pallial line entire. Periostracum: Thin, weakly lirate and greenish when fresh. Colour: Shell off-white, translucent.

Distribution & Ecology

Known from the North East Atlantic margin as far south as the Bay of Biscay. It appears to be associated with glass sponge grounds at bathyal depths.

Depth Range
Bathyal (500 - 2000m)

Additional Information & Related Species

Key Features & Similar Species

The shell is distinctive in its great tumidity. It is similar to the fossil species Glibertia pumila (Sowerby, 1844) and may indeed be congeneric but the anatomy is so distinctive that the generic name Draculamya is retained.

Related Species


Listed are literature citing Draculamya porobranchiata Oliver & Lützen, 2011. Reference containing the species Type Description is highlighted.

Oliver P.G. & Lützen J. 2011. An anatomically bizarre, fluid-feeding, galeommatoidean bivalve: Draculamya porobranchiata gen et sp nov. (Mollusca: Bivalvia). Journal of Conchology. 40 (4): 365-392.


  • 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: 17/05/2016