Propebela rugulata

Propebela rugulata (common name : Gould's northern turrid) is a species of sea snail, a marine gastropod mollusc in the family Mangeliidae.^[1]

Propebela rugulata
Shells of Propebela rugulata (holotype of the synonym Bela gouldii at the Smithsonian Institution)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Neogastropoda
Superfamily:	Conoidea
Family:	Mangeliidae
Genus:	Propebela
Species:	P. rugulata
Binomial name
Propebela rugulata (Møller in Reeve, 1846)
Synonyms[1]
Bela gouldii Verrill, 1882 Bela rugulata (Reeve, 1846) Bela rugulata var. clathrata Friele, 1886 Bela subarctica Derjugin, 1924 Oenopota rugulata (Reeve, 1846) Oenopota rugulatus [sic] (incorrect gender ending) Pleurotoma rugulatus Reeve, 1846 (original combination) Pleurotoma ulidiana Thompson W., 1845 Propebela gouldii A. E. Verrill, 1882

Description

The whorls are angulated; the axial ribs straight, and not sigmoid. The length of the aperture is about the same as that of the spire. The angulated part of the ultimate whorl is sharp. The apex has a somewhat flattened protoconch. The first whorl has two prominent spiral ribs. The teeth of the radula vary, from broad-coniform to elongate-coniform^[2]

Distribution

This marine species occurs from Greenland to Massachusetts, USA. Fossils have been found in Quaternary strata of Iceland, age range: 2.588 to 0.012 Ma