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Geophis incomptus DUELLMAN, 1959

IUCN Red List - Geophis incomptus - Data Deficient, DD

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Higher TaxaColubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Common NamesE: Sierra Coalcoman Earth Snake
S: Minadora de Sierra de Coalcoman 
SynonymGeophis incomptus DUELLMAN 1959: 3
Geophis incomptus — BOGERT & PORTER 1966
Geophis incomptus — LINER 1994
Geophis incomptus — WILSON & TOWNSEND 2007: 11
Geophis incomptus — WALLACH et al. 2014: 302 
DistributionMexico (Michoacan: Sierra de Coalcoman)

Type locality: Dos Aguas, 2100 m elevation, Michoacán, México.  
TypesHolotype: UMMZ 118840 
DiagnosisDIAGNOSIS. A species of Geophis with smooth dorsal scales in 15 rows and an anterior temporal; differs from only other known species with these characteristics (maculiferus) in having two postoculars instead of one, six or seven lower labials instead of five, no light color on snout, and anterior edges of the ventrals dark (DUELLMAN 1959: 3).

Coloration: The dorsum is olive brown; tips of scales black; dorsal color in- cludes first scale row; ventrals cream, anterior edge of each black; underside of tail black; top of head black; at least lower half of upper labials, all of lower labials, and chin yellow. In life the dorsum was gunmetal bluish black; the belly was pale yellow with bluish black transverse markings; the labials and chin were yellow (DUELLMAN 1959: 3).

Diagnosis. Downs 1967: 118

Coloration: Downs 1967: 120 
CommentDistribution: Known only from the type locality, fide Wilson 2007. 
  • Bogert, Charles M. & Porter, Ann P. 1966. A new species of Geophis (Serpentes, Colubridae) fromthe state of Colima, Mexico. American Museum Novitates (2260): 1-10 - get paper here
  • Downs, F. L. 1967. lntrageneric relations among colubrid snakes of the genus Geophis Wagler. Misc. Publ. Mus. Zool. Univ. Michigan 131: 1-193. - get paper here
  • Duellman, William E. 1959. Two new snakes, genus Geophis, from Michoacán, Mexico. Occasional Papers of the Museum of Zoology, University of Michigan (605): 1-9 - get paper here
  • Heimes, P. 2016. Snakes of Mexico. Chimaira, Frankfurt, 572 pp
  • Wallach, Van; Kenneth L. Williams , Jeff Boundy 2014. Snakes of the World: A Catalogue of Living and Extinct Species. [type catalogue] Taylor and Francis, CRC Press, 1237 pp.
  • WILSON, L.D. & J.H. TOWNSEND 2007. A checklist and key to the snakes of the genus Geophis (Squamata: Colubridae: Dipsadinae), with commentary on distribution and conservation. Zootaxa 1395: 1-31 - get paper here
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