
pisidium supinam

pisidium supinam sookshm taaje paani key clam kii ack prajaati haye, ack mutter clam, spariday parivaar mein ack jaleey dwi-pakshiya molsk (nakhun clam aur mutter clam).)
iss prajaati kaa khol aakar mein 3 seey 5 mimi haye, aur aakar mein lagbhag trikoniya haye.
vitaran.
iska mool vitaran polyarctic haye.

