Type species is Pugnellus dietrichi Riedel, 1932
Original Diagnosis of Bizarrus by Kiel & Bandel, 1999:
- "Medium- to large-sized Gymnarus-like species that lack any ornamentation on the spire or the body whorl, possess a posterior horn and cover their entire shell with callus. The aperture is narrow and of rectangular or lenticular outline. The lower part of the outer lip may show a ventrally inclined fold."
Bizarrus species are
Etymology: named after its bizarre shape