Holman (1970) and Van Devender and Worthington (1977) were unable to distinguish the Southwestern species of patchnose snakes on vertebral characters. The latter noted that, depending on the species, anything from desertscrub to forest can be inhabited.
Fig. 1. Mountain Patchnose Snake (Salvadora grahamiae), one of the modern regional species of Salvadora. Photograph by Carl S. Lieb.
Mid Wisconsin: U-Bar Cave (Harris 1993c: cf.).
Mid/Late Wisconsin: Animal Fair (Harris 1993c).
Late Wisconsin: Charlies Parlor (Harris 1989: cf.); Bison Chamber (Holman 1970); Harris' Pocket (Holman 1970); Upper Sloth Cave (Logan and Black 1979: cf.).
Late Wisconsin/Holocene: Deadman Cave (Mead et al. 1984); Howell's Ridge Cave (Van Devender and Worthington 1977); Pendejo Cave (UTEP).
Literature. Harris 1989, 1993c, 2003; Holman 1970; Logan and Black 1979; Mead et al. 1984; Van Devender and Worthington 1977.
Last Update: 16 Jan 2013