Bowman 1992. Two subterranean aquatic isopod crustaceans new to Texas: Mexistenasellus coahuila (Cole and Minckley, 1972) (Asellota: Stenasellidae) and Speocirolana hardeni, new species (Flabellifera: Cirolanidae). Texas Memorial Museum Speleological Monograph, 3 1992: 23-30