Tricornis thersites( Swainson, W.A., 1823) 135mm Onna-wan, Okinawa, Japan. Collected by diver in10m depth on sandy bottom. 2010

Tricornis latissimus(Linnaeus,C.,1758) 182mm

Tricornis tricornis tricornis (Humphrey,G.,1786) 105mm Gulf of Aden,1982.

Tricornis sinuatus(Humphrey,G.,1786) 102mm Vietnam, 2007

Tricornis sinuatus(Humphrey,G.,1786) 107,2mm Vietnam, 2007

Tricornis sinuatus(Humphrey,G.,1786) 115,8mm Vietnam, 2007