Malleus malleus (Linnaeus, 1758)
Black hammer oyster
photo by Batoy, Corazon B.

Family:  Malleidae (hammer oysters)
Max. size: 
Environment:  benthic; marine; depth range 1 - 15 m
Distribution:  Indo-Pacific: from East Africa, to Melanesia; north to Japan and south to Queensland.
Diagnosis:   
Biology:  Byssally attached to hard objects, on reef flats, coarse coral sand or eelgrass areas. The shell is vertically disposed and partly buried in sediment, with the long dorsal ears acting as an anchor and the ventral quarter of valves exposed. Sublittoral. Often occurring in large colonies (Ref. 348).
IUCN Red List Status: Not Evaluated (N.E.) Ref. 123251)
Threat to humans:  harmless
Country info:   
 

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