Ledella pustulosa (Jeffreys, 1876)
Nuculanoidea : Nuculanidae |
| Tebble name: | n/a |
| Smith & Heppell name: | Ledella pustulosa (Jeffreys, 1876) |
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 6mm.
Shell Structure:
Moderately solid.
Equivalve:
Equivalve.
Equilateral:
Slightly inequilateral, beaks just in front of midline, approximately 45% of total length from anterior end.
Tumidity:
Tumid.
Outline:
Oval with a short rostrum: shell height approximately 65-70% of length; antero-dorsal margin straight to slightly convex; postero-dorsal margin almost straight to gently sloping; rostrum broadly rounded; postero-ventral margin flexuous; ventral margin deeply rounded. Umbo relatively broad and prominent, projecting above the dorsal margin.
Sculpture:
Fine, irregular concentric lines and radial lines which vary in prominence.
Margin:
Smooth.
Ligament:
Internal, amphidetic, oval, seated in a relatively broad resilium beneath the beaks.
Hinge:
Taxodont: Hinge plate relatively solid and broad, becoming broader away from the beaks; robust, blunt, short chevron-shaped teeth, approximately 10-12 either side of the ligament.
Periostracum:
Silky to slightly glossy, greyish to straw-coloured covered with pustules or blisters.
Colour:
Translucent white.
Additional Characters:
The hind-gut forms a series of simple, rounded loops on the left and right side of the body.
Distribution & Ecology
Depth Range
Bathyal (500 - 2000m)
Abyssal Rise (2000 - 4000m)
Additional Information & Related Species
Related Species
Nuculanoidea : Nuculanidae
References
Listed are literature citing Ledella pustulosa (Jeffreys, 1876). Reference containing the species Type Description is highlighted.
|
Jeffreys J G 1876. New and peculiar Mollusca of the Pecten, Mytilus and Arca families, procured in the Valorous expedition. Annals and magazine of natural History. (4)18: 424-436. |
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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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