Anentome fusca is a species of freshwater snail with an operculum, an aquatic gastropod mollusk in the subfamily Anentominae of the family Nassariidae.

[1][2] Like all snails in the clade Neogastropoda, this species is carnivorous.

It feeds on different types of worms and gastropods, often eating other, larger snails after burying themselves and ambushing their prey.

[2] Anentome fusca consists of defined male and female genders, and is not capable of gender change.

When a male and female mate, they lock together for 8–12 hours.