Cetomya tornata (Jeffreys, 1876)
Poromyoidea : Poromyidae |
| Tebble name: | n/a |
| Smith & Heppell name: | n/a |
Notes on Nomenclature
To size:
To 15mm.
Shell Structure:
Thin.
Equivalve:
Equivalve.
Equilateral:
Slightly inequivalve, beaks just in front of midline.
Tumidity:
Obese, almost spherical.
Outline:
Umbonate roundly subovate. Beaks strongly inturned to the anterior to create a deep lunule margin. Anterior and ventral margins a continuous broad curve. Posterior dorsal margin straight to a slightly rostrate truncate posterior margin. Ventral margin broadly rounded to a broadly rounded anterior and anterior dorsal margin.
Contour:
Slight rostrum is set off from body by sinus.
Sculpture:
Of co-marginal lines which are intersected by radial rows of tiny tubercules.
Margin:
Smooth.
Ligament:
External, on chondrophore just behind beaks.
Hinge:
RV with a projecting cardinal in front of chondrophore; LV with a posterior ridge-like lateral behind chondrophore.
Pallial Musculature:
Pallial sinus broad, shallow.
Periostracum:
Beige.
Colour:
White.
Distribution & Ecology
Depth Range
Bathyal (500 - 2000m)
Abyssal Rise (2000 - 4000m)
Abyssal Plain (4000m +)
Additional Information & Related Species
Related Species
Poromyoidea : Poromyidae
References
Listed are literature citing Cetomya tornata (Jeffreys, 1876). Reference containing the species Type Description is highlighted.
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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. |
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Jeffreys J G 1876. New and peculiar Mollusca of the Kellia, Cyprina and Corbula families, procured in the Valorous expedition. Annals and magazine of natural History. (4) 18: 490-499. |
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Olabarria C. 2005. Patterns of bathymetric zonation of bivalves in the Porcupine Sea Bight and adjacent abyssal plain, NE Atlantic. Deep-Sea Research I. 52: 15-31. |
Resources
- Conchological Society
of Great Britain & Ireland
Provides resources for understanding, identifying, recording, and conserving molluscs - CLEMAM
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.
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