Yoldia hyperborea (Gould, 1841)
Nuculanoidea : Nuculanidae |
| Tebble name: | n/a |
| Smith & Heppell name: | Yoldia hyperborea Torell, 1859 |
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 50 mm.
Shell Structure:
Thin but robust.
Equivalve:
Equivalve.
Equilateral:
Subequilateral, beaks just behind midline.
Tumidity:
Compressed.
Outline:
Elongate elliptical, posteriorly subrostrate; dorsal margins long sloping gently; anterior narrowly rounded; ventral gently curved, posterior ventral sloping obliquely up to narrow blunt extremity.
Sculpture:
Smooth with fine concentric lines and growth stops.
Margin:
Inner margin smooth.
Ligament:
Internal, set on a small triangular resilifer below the beaks.
Hinge:
Taxodont, largest shells with c.35 anterior teeth and c.30 posterior teeth, teeth in centre of each series the largest.
Pallial Musculature:
Pallial sinus subacute, almost extending to line beneath the beaks.
Periostracum:
Persistent, very glossy, shades of olive green to brownish green.
Colour:
Shell white.
Distribution & Ecology
Depth Range
Continental Shelf (to 200m)
Additional Information & Related Species
Related Species
Nuculanoidea : Nuculanidae
References
Listed are literature citing Yoldia hyperborea (Gould, 1841). Reference containing the species Type Description is highlighted.
|
Torell O M 1859. Bidrag till Spitsbergen Mollusk-fauna. Jemte en allman oversigt af Arktiska regionens naturforahallanden och forntida ubtredning Boktrycheri, Stocholm. 118. |
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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