The green mussel (Perna viridis) is also referred as the green lipped mussel or the Asian green mussel. The shell
of P.viridis tapers to a sharp, down turned beak and has a periostracum that is dark green to dark brownish green. The
ventral margin of the shell is straight or weakly concave. The beak has interlocking teeth, one in the right valve and two
in the left. The wavy posterior end of the pallial line and the large kidney-shaped adductor muscle are diagnostic
features of this species.The native range of the green mussel is along the Indian coast and throughout the Indo-
Pacific. It occurs naturally and is widely distributed along the intertidal coasts of Indi