Isognomon californicum

Isognomon californicum, the black purse shell or nahawele, is a species of Hawaiian bivalve in the family Isognomonidae. It was first formally named in 1837 by Timothy Abbott Conrad as Perla californica.

Isognomon californicum

Isognomon californicum, the black purse shell or nahawele, is a species of Hawaiian bivalve in the family Isognomonidae. It was first formally named in 1837 by Timothy Abbott Conrad as Perla californica.