Syssitomya pourtalesiana Oliver, 2012
Galeommatoidea : Montacutidae |
| Tebble name: | n/a |
| Smith & Heppell name: | Axinodon symmetros Jeffreys, 1876 |
To size: To 4.5mm. Shell Structure: Thin, fragile. Equivalve: Equivalve. Equilateral: Inequilateral, beaks distinctly behind midline. Tumidity: Somewhat inflated. Outline: Subovate, longer than high, length to height ratio 1.3:1, distinctly expanded anteriorly becoming a little oblique; anterior dorsal margin short as a depressed but ill-defined lunule; anterior broadly rounded; posterior dorsal margin sloping merging smoothly with rounded posterior margin; anterior distinctly more rounded than posterior; ventral margin gently curved.
Sculpture: Of dense, fine commarginal ridges. Margin: Inner margin smooth. Ligament: Internal, short, attached to a shallow resilifer situated beneath and posterior of the beaks. Hinge: Right valve with a single, projecting, cardinal peg, immediately anterior to this tooth a prominent depression; left valve with a short, marginal flange in a posterior lateral position. Pallial Musculature: Scars weakly impressed, indistinct but adductor muscles subequal, pallial line entire. Periostracum: Insignificant. Colour: Shell off-white, translucent.
Distribution & Ecology
The depth range is large from the upper bathyal and abyssal zones, 800-3617m.
Depth Range
Bathyal (500 - 2000m)
Abyssal Rise (2000 - 4000m)
Additional Information & Related Species
Key Features & Similar Species
Related Species
Galeommatoidea : Montacutidae
References
Listed are literature citing Syssitomya pourtalesiana Oliver, 2012. Reference containing the species Type Description is highlighted.
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Oliver P.G. 2012. Taxonomy of some Galeommatoidea (Mollusca, Bivalvia) associated with deep-sea echinoids: A reassessment of the bivalve genera Axinodon Verrill & Bush, 1898 and Kelliola Dall, 1899 with descriptions of new genera Syssitomya gen. nov. and Ptilomyax gen. nov. . European Journal of Taxonomy. 12: 1-24. |
Resources
- Conchological Society
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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
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