Stiff pen shell [Pinna carnea]
Description
The stiff pen shell is a species of marine bivalve molluscs that lives in the western Atlantic Ocean. It is known for its large, fan-shaped shell which can reach up to 60 cm in length. The shell is thin, brittle, and brownish with a smooth surface. They are usually found in sandy or muddy substrates.
Taxonomy
| Phylum |
Mollusks
Mollusca
|
|---|---|
| Class |
Clams, Oysters, and Scallops
Bivalvia
|
| Order |
Pearl Oysters and Relatives
Pteriida
|
| Family |
Winged Oysters
Pinnidae
|
| Genus |
Pinna
Pinna
|