Pristigloma nitens (Jeffreys, 1876)
Pristiglomoidea : Pristiglomidae |
| Tebble name: | n/a |
| Smith & Heppell name: | Pristigloma nitens (Jeffreys, 1876) |
To size:
To 3.5mm.
Shell Structure:
Thin, fragile.
Equivalve:
Equivalve.
Equilateral:
Slightly inequilateral, beaks situated to the anterior of midline, approximately 45% of total length from anterior end.
Tumidity:
Moderately tumid.
Outline:
Sub-circular: width of shell only slightly greater than height. Posterior dorsal margin straight and gently sloping, anterior dorsal margin very short with a sharp angle in front of the umbo. Other margins well rounded. No lunule or escutcheon. Umbo prominent, swollen and raised above the dorsal margin; prodissoconch smooth, conspicuous with defined margin.
Sculpture:
Primary sculpture of very fine, regular concentric lines with occasional more prominent growth stops. Also has a sculpture of extremely fine radiating lines.
Margin:
Smooth.
Ligament:
Internal, opisthodetic, prominent, elongate, dark brown ligament seated in an elongated groove which runs along the lower part of the posterior hinge plate for about half of its length.
Hinge:
Taxodont: relatively solid hinge plate separated into 2 distinct parts. Posteriorly the hinge plate is long, relatively narrow and slightly curved, with around 10 slightly raised and pointed chevron-shaped teeth. The anterior part of the hinge plate is short and broad with 4 larger, much less chevron-shaped teeth.
Pallial Musculature:
Pallial line and muscle scars indistinct.
Periostracum:
Pale yellowish green with a satiny texture.
Colour:
Translucent white to bluey grey, inside of shell lustrous.
Additional Characters:
Four rather elongated loops on either side of the body.
Distribution & Ecology
Found throughout most of the Atlantic deep-sea basins.
Depth Range
Abyssal Rise (2000 - 4000m)
Additional Information & Related Species
Related Species
Pristiglomoidea : Pristiglomidae
References
Listed are literature citing Pristigloma nitens (Jeffreys, 1876). Reference containing the species Type Description is highlighted.
|
Jeffreys J G 1876. Preliminary report of the biological results of a cruise in HMS Valorous to the Davis Straits in 1875. Proceedings of the Royal Society. 25: 177-237, pls2-4. |
|
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. |
|
Sanders H L & Allen J A 1973. Studies on deep-sea Protobranchia (Bivalvia); prologue and the Pristiglomidae. Bulletin of the Museum of Comparative Zoology, Harvard. 145: 237-262. |
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.
Image Gallery
