Six new epigean species of Caecidotea/ (Isopoda: Asellidae) distributed along the Trans-Mexican Volcanic Belt in Central Mexico.

Six new epigean freshwater species of the genus Caecidotea in Mexico are described. These species were collected in waterbodies located along the Trans-Mexican Volcanic Belt (TMVB) and the eastern slope of the country: Caecidotea buzwilsoni sp. nov.

Caecidotea camaxtli (Isopoda: Asellidae) a new species from the Tlaxcala valley, Mexico.

A new freshwater isopod, Caecidotea camaxtli sp. nov. (Isopoda, Asellidae) is described from Mexico.