original description
(of Protrichoniscus villalobosi Rioja, 1950) Rioja, E. (1950). Estudios carcinologicos. XXII Los triconiscidos cavernicolas de Mexico del genero <i>Protrichoniscus</i> y descripcion de una nueva especie del mismo. <em>Anales del Instituto de Biologia, Universidade Nacional Autonoma de Mexico.</em> 21(1): 127-146. [details] Available for editors
basis of record
Schotte, M., B.F. Kensley & S. Shilling. (1995 onwards). World list of Marine, Freshwater and Terrestrial Crustacea Isopoda. National Museum of Natural History Smithsonian Institution: Washington D.C., USA - no longer online. [website archived on 2018-01-25]. [details]
additional source
Schmalfuss, H. (2003). World catalog of terrestrial isopods (Isopoda: Oniscidea). <em>Stuttgarter Beiträge zur Naturkunde Serie A (Biologie).</em> 654: 1-341., available online at https://www.biodiversitylibrary.org/page/60882444 [details] Available for editors
From editor or global species database
type locality Mexico [details]