Ledella pustulosa (Jeffreys, 1876)
Nuculanoidea : Nuculanidae
Slightly inequilateral, beaks just in front of midline, approximately 45% of total length from anterior end.
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
Bathyal (500 - 2000m)
Abyssal Rise (2000 - 4000m)
Additional Information & Related Species
Nuculanoidea : Nuculanidae
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.
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.
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