Species Account

Limopsis cristata Jeffreys, 1876

Limopsoidea : Limopsidae

Tebble name: n/a
Smith & Heppell name: Limopsis cristata Jeffreys, 1876

To size: To 10mm. Shell Structure: Brittle, opaque. Equivalve: Equivalve. Equilateral: Inequilateral, beaks in front of midline. Tumidity: Somewhat compressed. Outline: Oval-subcircular, slightly oblique. Contour: Dorsal margin short, straight, dorsal area shallowly cleft.

Sculpture: Of weak radial ridges cut by concentric lines. Margin: Inner margin crenulated. Ligament: Amphidetic, a small triangular resilium set in a shallow resilifer between beaks. Hinge: Taxodont, strong teeth in two series set on a shallow arched hinge plate. Pallial Musculature: Adductor scars unequal, posterior twice size of anterior. Periostracum: Of straw coloured bristles standing erect and in radial rows. Colour: White.

Distribution & Ecology

Semi-infaunal, attached by 2-3 long threads to sediment particles. On the slope, mostly lower, and on the abyssal rise, 500- 2000m. Along the western seaboard.

Depth Range
Bathyal (500 - 2000m)
Abyssal Rise (2000 - 4000m)

Additional Information & Related Species

Juvenile Description

As adults but with few teeth.

Key Features & Similar Species

The semi-erect bristles distinguish this species from other limopsids but if worn then the rounded shape and evenly denticulate margin distinguish it from L. minuta where the posterior ventral denticles are larger than the rest.

Related Species


Listed are literature citing Limopsis cristata 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.
Oliver G & Allen J A 1980. The Functional and Adaptive Morphology of the Deep-Sea Species of the Family Limopsidae (Bivalvia: Arcoida) from the Atlantic. Philosophical Transactions of the Royal Society of London Series B. 291: 77-125.


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Record last modified: 22/03/2016