Shell Family of Taiwan
Dimyidae 石牡蠣科contain2 species in Taiwan，show1 - 2
 
Dimyidae ：Shell small-sized, thin, highly inequivalve, irregular in shape, attaching to hard objects by right valve. Right valve often becomes deeper with growth, while left valve remains nearly flat. Teeth weak; ligament internal. Inner surface often shows crenulated margin and pearly luster, but inner layer probably consists of crossed-lamellar aragonite. Dimyarian; anterior adductor smaller than posterior, but never degenerated throughout growth. Isofilibranchiate.
Senitfic Name
Chinese Name
omenclator
photo
 Dimya filipina   Bartsch, 1913  
 Dimya japonica   Habe