Actinotrophon is a genus of sea snails, marine gastropod mollusks in the subfamily Pagodulinae of the family Muricidae, the murex snails or rock snails.

[1] A group which perhaps deserves distinction is Actinotrophon, based on Boreotrophon actinophorus Dall, 1889 in which with the structure of the thin Borvotrophon with long coronating spines is united as a feature, not elsewhere noted in the genus, of successive canals, so curved that the projecting old ones, recurving from the siphonal fasciole form a whorl of hollow split spines, diverging from a deep umbilical pit, as in some murices.

In Murex, however, the siphonal canal is closed and the aperture has a projecting callous margin.

[2] Species within the genus Actinotrophon include:

This Muricidae-related article is a stub.