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Trisidos tortuosa
Trisidos tortuosa (Linnaeus, 1758)
Propellor ark
Trisidos tortuosa
photo by Coltro, Marcus

Family:  Arcidae ()
Max. size:  8.5 cm TL (male/unsexed)
Environment:  benthic; marine; depth range 0 - 50 m
Distribution:  Indo-West Pacific: from East Africa, including the Red Sea and the Persian Gulf to Papua New Guinea; north to Japan and south to Queensland.
Diagnosis:   
Biology:  Half-buried in fine to medium sand bottoms, with abundant fragmental shell material and subject to the effects of currents and wave action. Littoral and sublittoral (Ref. 348).
IUCN Red List Status: Not Evaluated (N.E.) Ref. 123251)
Threat to humans:  harmless
Country info:   
 

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