Pinna nobilis, common name the noble pen shell or fan mussel, is a large species of Mediterranean clam, a marine bivalve mollusc in the family Pinnidae, the pen shells. It reaches up to 120 cm (4 ft) of shell length. It produces a rare...
Atrina fragilis, the fan mussel, is a species of large saltwater clam, a marine bivalve mollusc in the family Pinnidae, the pen shells.The fan mussel, Atrina fragilis is one of the largest (30 to 48 cm long) and rarest bivalve molluscs occurring in...
Atrina rigida, commonly called the rigid pen shell, is a species of bivalve mollusc in the family Pinnidae.
Atrina serrata, or saw-toothed pen shell, is a species of bivalve mollusc in the family Pinnidae. It can be found along the Atlantic coast of North America, ranging from North Carolina to Texas and the West Indies.
Atrina squamifera, one of several species known as the horse mussel, is a species of bivalve pen shell. It is a marine mollusc in the family Pinnidae. It is endemic to South Africa.
Streptopinna is an Indo-Pacific genus of bivalve molluscs characterized by a roughly triangular outline. There is only one species Streptopinna saccata.
