Gastropoda - Ptenoglossa - Epitoniidae

Alternative combinations: Scala unilineata, Scalaria unilineata

Belongs to Acrilla according to K. V. Palmer and D. C. Brann 1966

Sister taxa: Acrilla affinis, Amaea (Acrilla) affinis, Amaea (Acrilla) gallica, Amaea (Acrilla) issawii, Epitonium (Acrilla) peruvianum, Scalaria (Acrilla) leptalea

Type specimen: USNM 8920, a shell

Ecology: slow-moving low-level epifaunal carnivore