A checklist and key to the snakes of the genus Geophis (Squamata: Colubridae: Dipsadinae), with commentary on distribution and conservation Author Wilson, Larry David Author Townsend, Josiah H. text Zootaxa 2007 1395 1 31 journal article 10.5281/zenodo.273681 1414766b-1cb5-4fdb-be42-306fac45815d 1175­5326 273681 45. Geophis tarascae Hartweg Geophis tarascae Hartweg 1959 :1 . Holotype . University of Michigan Museum of Zoology ( UMMZ ) 99151, male collected 18 July 1947 by N. Hartweg. Type­locality. The “Parque Nacional” outside of Uruapan, Michoacán, Mexico , ca. 1676 m elevation. Distribution. Known from 1400­1700 m elevation in Jalisco and Michoacán, Mexico Species group. chalybeus ( Downs 1967 ) . Systematic references. Downs (1967) , Dixon (1968) , Medica et al . (1975) .