Perrona spirata explained

Perrona spirata is a species of sea snail, a marine gastropod mollusk in the family Clavatulidae.^[1]

Description

The size of an adult shell varies between 20and. The whorls are constricted around the upper part, with a rather sharp ridge next to the suture, and an obtuse angle below the constriction. The color of the shell is yellowish, mottled and striped with chestnut.^[2]

References

• Gofas, S.; Afonso, J.P.; Brandào, M. (Ed.). (S.a.). Conchas e Moluscos de Angola = Coquillages et Mollusques d'Angola. [Shells and molluscs of Angola]. Universidade Agostinho / Elf Aquitaine Angola: Angola. 140 pp.

Notes and References

1. P. Bouchet . Yu. I. Kantor . A. Sysoev . N. Puillandre . 2011 . A new operational classification of the Conoidea (Gastropoda) . . 77 . 3 . 273–308 . 10.1093/mollus/eyr017. free .
2. [George Washington Tryon]