Tropidoturris

Tropidoturris is a genus of sea snails, marine gastropod mollusks in the family Borsoniidae.^[1]

Tropidoturris
Apertural view of a shell of the subspecies Tropidoturris fossata notialis
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Neogastropoda
Superfamily:	Conoidea
Family:	Borsoniidae
Genus:	Tropidoturris Kilburn, 1986
Type species
Pleurotoma scitecosta Sowerby III, 1903

Description

The biconical shell shows spiral lirae, with or without strong axial ribs. The protoconch contains 1½ - 2 smooth whorls. The distinct shoulder angle is usually very strong and crenellated by axials (when present). The columella shows a thin callus but no pleats. The outer lip is thin. The anal sinus is deep and wide. The small, translucent operculum has an oblanceolate shape and a terminal nucleus.^[2]

Distribution

This marine species is endemic to south-eastern Africa

Species

• Tropidoturris anaglypta Kilburn, 1986
• Tropidoturris fossata (Sowerby III, 1903)
• Tropidoturris planilirata Kilburn, 1986
• Tropidoturris scitecosta (Sowerby III, 1903)
• Tropidoturris simplicicingula (Barnard, 1958)
• Tropidoturris vizcondei Morassi & Bonfitto, 2013