Yoldiella solidula Warén, 1989
Nuculanoidea : Nuculanidae |
| Tebble name: | n/a |
| Smith & Heppell name: | n/a |
Notes on Nomenclature
Killeen & Turner (2009) use Nuculanidae instead of Yoldiidae in agreement with Ockelmann & Warén (1998) who explan that the distinguishing characters between these two families has never been well documented. Until the Yoldiidae can be clearly distinguished from the Nuculanidae we shall treat them under the single family Nuculanidae.
To size:
To 3.6mm.
Shell Structure:
Very solid.
Equivalve:
Equivalve.
Equilateral:
Equilateral, beaks located at midline.
Tumidity:
Tumid.
Outline:
Oval: antero-dorsal and postero-dorsal margins short, almost horizontal; dorsal margin - posterior margin and dorsal margin - anterior margin junctions visible; anterior margin narrowly rounded or slightly pointed at the horizontal midline; posterior margin pointed above the horizontal midline, lower posterior margin obliquely truncated forming a weakly rostrate posterior margin in larger specimens; ventral margin deeply curved. Umbo broad, prominent above the dorsal margin, situated at the midline.
Sculpture:
Virtually smooth, with only faint concentric lines and growth stops.
Margin:
Smooth.
Ligament:
Amphidetic, attached internally to the underside of the beak without a projecting chondrophore or resilifer.
Hinge:
Hinge very solid, broad, v-shaped with 6-8 robust chevron-shaped teeth on either side of the ligament.
Periostracum:
Glossy, dark straw-coloured, with darker coloured bands in older individuals.
Additional Characters:
The hind-gut forms a simple, rounded loop on the right side of the body.
Distribution & Ecology
Depth Range
Continental Margin Zone (200 - 500m)
Bathyal (500 - 2000m)
Abyssal Rise (2000 - 4000m)
Additional Information & Related Species
Related Species
Nuculanoidea : Nuculanidae
References
Listed are literature citing Yoldiella solidula Warén, 1989. Reference containing the species Type Description is highlighted.
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Killeen I.J. & Turner J. 2009. Yoldiella and Portlandia (Bivalvia) from the Faroe-Shetland Channel and Rockall Trough, Northeast Atlantic. Journal of Conchology. 39 (6): 733-778. |
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Warén A 1989. Taxonomic comments on some protobranch bivalves from the northeastern Atlantic. Sarsia. 74: 223-259. |
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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