Species: Cenaspis aenigma
Cenaspis aenigma Campbell, Smith & Hall, 2018: 461
- Holotype: UTA R-10544, adult ♂, collected by Julio Ornelas-Martínez on 6 July 1976.
- Type locality: “"La Loma", located some 20–25 km (by road) W-NW of Rizo de Oro (sometimes known as Nueva Tenochtitlán), Chiapas, Mexico. Access is gained into this region by means of a logging road connecting Rizo de Oro with Colonia Rodulfo Figueroa; the latter is a small settlement very near the border with Oaxaca. The type locality lies to the N-NW of Colonia Rodulfo Figueroa on the western slopes of Cerro El Baúl, the highest peak in the region, rising to an elevation of 2,050 m”.
- Campbell, J.A., Smith, E.N. & Hall, A.S. 2018. Caudals and Calyces: The Curious Case of a Consumed Chiapan Colubroid. Journal of Herpetology 52(4): 458–471. DOI: 10.1670/18-042 Reference page.
- Uetz, P. & Hallermann, J. 2023. Cenaspis aenigma. The Reptile Database. Accessed on 28 April 2019.