See text Phrontis is a genus of sea snails, marine gastropod mollusks in the subfamily Nassariinae of the family Nassariidae, the Nassa mud snails or dog whelks.

The whorls are ribbed or nodulose.

The inner lip is smooth and has an extended, thickened callus.

[2] Species within the genus Phrontis include:

This Nassariidae-related article is a stub.