Altrix is a genus of sea snails, marine gastropod mollusks in the family Fissurellidae, the keyhole limpets.
Species Species within the genus Aktrix include: Altrix trifolium (Dall, 1881) Altrix altior (Meyer & Aldrich, 1886) Altrix leesi (Sohl, 1992) Altrix pacifica (Squires & Goedert, 1996) Altrix palmerae (Olsson, 1964)
References
Nomenclator Zoologicus info