Thyasira tortuosa (Jeffreys, 1881)
Thyasiroidea : Thyasiridae |
| Tebble name: | n/a |
| Smith & Heppell name: | Thyasira tortuosa (Jeffreys, 1881) |
To size: To 7mm. Shell Structure: Thin, translucent. Equivalve: Equivalve. Equilateral: Inequilateral, beaks just behind the midline. Tumidity: A little compressed. Outline: Broadly subovate, distinctly longer than high; anterior dorsal margin long, straight, sloping gently; anterior short, rounded; ventral margin long, gently curved; posterior obliquely truncated; posterior dorsal margin long gently curved. Contour: Auricle absent; submarginal sulcus narrow, shallow but distinct; posterior area flattened or weakly sulcate; posterior angle weak.
Sculpture: Smooth with growth lines. Margin: Smooth. Ligament: External but deeply sunken, extending for 1/4 length of submarginal sulcus. Hinge: Hinge plate weak, slightly thickened anterior of beaks. Pallial Musculature: Muscle scars obscure. Periostracum: Obscure. Colour: Shell white. Additional Characters: 2 demibranchs.
Distribution & Ecology
Depth Range
Bathyal (500 - 2000m)
Additional Information & Related Species
Related Species
Thyasiroidea : Thyasiridae
References
Listed are literature citing Thyasira tortuosa (Jeffreys, 1881). Reference containing the species Type Description is highlighted.
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Jeffreys J.G. 1881. On the Mollusca procured during the ‘Lightning’ and ‘Porcupine’ Expeditions, 1868-70. (Part III). Proceedings of the Zoological Society of London. 1881: 693-724. |
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Payne C.M. & Allen J.A. 1991. The morphology of deep-sea Thyasiridae (Mollusca: Bivalvia) from the Atlantic Ocean. Philosophical Transactions of the Royal Society of London Series B. 334: 481-566. |
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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