The Nautilus Log
Poulson's Dwarf Triton

Poulson's Dwarf Triton

NamePoulson's Dwarf Triton
Scientific NameCabestana poulsoni
Common NamePoulson's Dwarf Triton
FamilyRanellidae
GenusCabestana
Speciespoulsoni
Geographic DistributionEastern Pacific, ranging from Southern California (USA) to Baja California (Mexico).
Habitatintertidal
Shell Shapefusiform
Average Size (mm)30-60
Identifying FeaturesRobust, fusiform shell with strong axial and spiral sculpture, resulting in a nodulose surface. Key features include prominent, irregularly spaced varices (thickened axial ribs), a thickened and denticulate (toothed) outer lip of the aperture, and a relatively short siphonal canal.
Raritycommon
Author Citation(Carpenter, 1864)

Description

A medium-sized predatory sea snail, characterized by its robust, fusiform shell with prominent axial ribs and spiral cords, forming a nodulose sculpture. It features distinct, irregularly spaced varices, a denticulate outer lip, and a relatively short siphonal canal. The shell typically exhibits a cream background with dark brown wavy axial and spiral patterns, creating a reticulated appearance.

Related Seashells