Exomilus cancellatus is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae.

(Original description) The small, fulvous brown shell is narrowly fusiform and turreted.

It contains five whorls, sloping angulate above plicate lengthwise.

The interstices are broadly striate, giving the whole shell a cancellated appearance.

[2] This marine species is endemic to Australia and occurs off Tasmania