Thamnophis postremus SMITH, 1942
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Thamnophis postremus
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| Higher Taxa | Colubridae (Natricinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) |
| Subspecies | |
| Common Names | E: Tepalcatepec Valley Gartersnake S: Jarretera de Tepalcatepec |
| Synonym | Thamnophis eques postremus SMITH 1942: 109 Thamnophis eques postremus — SCHMIDT 1947 Thamnophis cyrtopsis postremus — SMITH 1951: 140 Thamnophis cyrtopsis postremus — WEBB 1980 Thamnophis postremus — ROSSMAN et al. 1996 Thamnophis postremus — DE QUEIROZ et al. 2002 Thamnophis postremus — LINER 2007 Thamnophis postremus — WALLACH et al. 2014: 724 |
| Distribution | Mexico (Michoacan) Type locality: El Sabino, Michoacan. |
| Reproduction | ovoviviparous. |
| Types | Holotype: FMNH 120235 (was EHT-HMS 5275, H.M. Smith). Collected by: E. H. Taylor and H.M. Smith. Paratypes: (n=3) FMNH 5274, 5285-6, all females, from Uruapan, Michoacan. |
| Diagnosis | Diagnosis: Similar to e. eques, except ventrals fewer, 138 to 141 in the only specimens known (4 females); caudals 71 to 72; supralabials 7 to 8; lateral light stripes not apparent; middorsal stripe but very little lighter than ground color, scarcely or not evident; dark spots very much reduced, al ternating with each other in two series on either side; middorsum not traversed by spots; outer row of dark spots on first and second scale rows greatly reduced, generally scarcely visible; no distinct dark spots on venter. (Smith 1942: 109). |
| Comment | |
| Etymology | Named after the peripheral location of the subspecies in the geographic range of the species as a whole, from Latin postremus = last, hindmost) H. M. Smith, pers. comm., cited in Webb 1980). |
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