Benthofascis Iredale, 1936

Tucker, J. K., Tenorio, M. J. & Stahlschmidt, P., 2011, The genus Benthofascis (Gastropoda: Conoidea): A revision with descriptions of new species, Zootaxa 2796 (1), pp. 1-14 : 3

Genus: Benthofascis Iredale, 1936

Type species by original designation Bathytoma biconica Hedley, 1903

Diagnosis. Two or more spirals on the sutural ramps of the teleoconch; nodules absent; shells biconical with scalariform spire whorls; anal notch deep and not symmetrical; protoconch of 2.5 or fewer blunt and swollen whorls; protoconch smooth or ornamented by spirals and axials after a short smooth section; interior shell walls typically resorbed with the exception of Benthofascis lozoueti , which is somewhat doubtfully referred to Benthofascis . Radula is simple with a blade and barb and indistinct waist. The radular tooth has a c-fold and a waist fold; the barb and blade are small; the homologue of the basal spur is directed perpendicular to the tooth shaft rather than towards the apex of the tooth; a shaft fold is absent (after Tucker & Tenorio 2009).