Bivalvia | Cardiida
Environment: milieu / climate zone / depth range / distribution range
Benthic; depth range 5 - 30 m (Ref. 2758). Temperate; 54°N - 30°N, 11°W - 36°E
Northeast Atlantic and the Mediterranean: from Celtic and Lusitanian provinces, extending into the Mediterranean.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm Max length : 10.2 cm SHL male/unsexed; (Ref. 360); common length : 7.6 cm SHL male/unsexed; (Ref. 360)
Shell: solid, convex valves, equivalve and inequilateral, roughly oval in shape, uniformly deep yellow brown in color; sculpture consists of 20-22 well-developed ribs, with triangular spikes along the mid-line, in between are very marked concentric grooves; external ligament behind the umbones, hinge is heterodont; inside the valves are two identical scars (dimyarian and isomyarian) joined by a continuous pallial line, lacking a sinus. Body: foot is roughly cylindrical, well developed and used for leaping on the sand; distal extremity is bright red.
Minimum depth from Ref. 2703. Maximum depth from Ref. 106644. Found in an estuary (Ref. 122134). Coastal species (Ref. 112064), intertidal to the continental shelf (Ref. 105964). Lives in mud (Ref. 105964) and coarse sand (Ref. 106644).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Members of the class Bivalvia are mostly gonochoric, some are protandric hermaphrodites. Life cycle: Embryos develop into free-swimming trocophore larvae, succeeded by the bivalve veliger, resembling a miniature clam.
Gaspar, M.B., M.N. Santos and P. Vasconcelos. 2001. (Ref. 2758)
IUCN Red List Status (Ref. 127697)
CITES status (Ref. 108899)
Threat to humans
| FishSource |
Estimates of some properties based on models
): 8.5 - 21.3, mean 17.8 (based on 884 cells).
Low vulnerability (10 of 100).