Penion crawfordi

Penion crawfordi is an extinct species of marine snail or whelk, belonging to the true whelk family Austrosiphonidae.

Description
Penion crawfordi is a large, extinct species of Penion siphon whelk. Shells of P. crawfordi have spine-like, dorso-ventrally compressed nodules on the shell spire.

Distribution
Fossils of Penion crawfordi are found in northern South Island and southern North Island in New Zealand.