Thamnophis errans SMITH, 1942
Can you confirm these amateur observations of Thamnophis errans?
Thamnophis errans
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| Higher Taxa | Colubridae (Natricinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) |
| Subspecies | |
| Common Names | E: Mexican Wandering Garter Snake G: Mexikanische Wander-Strumpfbandnatter S: Jarretera Errante Mexicana |
| Synonym | Thamnophis ordinoides errans SMITH 1942: 112 Thamnophis ordinoides errans — SMITH & TAYLOR 1945 Thamnophis errans — SMITH 1950: 374 Thamnophis elegans errans — TANNER 1959 Thamnophis elegans errans — WEBB 1984 Thamnophis elegans errans — TANNER 1985: 656 Thamnophis errans — ROSSMAN et al. 1996: 178 Thamnophis errans — ROSSMAN & BURBRINK 2005 Thamnophis errans — JOHNSON et al. 2017 |
| Distribution | Mexico (Chihuahua, Durango, Jalisco, Nayarit) Type locality: Colonia Garcia, Chihuahua. |
| Reproduction | ovoviviparous. |
| Types | Holotype: USNM 46336, female; paraypes: FMNH; collection Date: July 1899. Paratypes: (n=5) Three topotypes, USNM 46337-9, and two from Coyotes, Durango FMNH 1499A-B. |
| Diagnosis | Diagnosis: A member of the ordinoides group, with 19-19-17 scale rows and maxil lary teeth 17 or 18, the posterior not con spicuously enlarged, although a little longer than the anterior teeth; ventrals 155 to 166 (155-156, females; 163-166, males); caudals 72 to 91 (72 to 82, females; 85 to 91, males); supralabials seven or eight; sixth labial large and not narrowed above; stripes very poorly defined as a rule, median stripe generally covering but one scale row where visible; spots between stripes small, those of the outer row usually very poorly de fined or absent; top of head dark, the color extending onto sides; supralabial region light, except for black posterior edges on most of the labials; a vaguely darker, longi tudinal line through lower temporal region. (Smith 1942: 112) Unfortunately we had to temporarily remove additional information as this was scraped by multiple AI companies who sell that data to their customers. These details, e.g. detailed descriptions or comparisons (about 50 characters) are available for collaborators and contributors. Please contact us for details. |
| Comment | Diet: see Heptinstall et al. 2024 |
| Etymology | Named after Latin “errans” = wandering, stray, apparently because this species represented “ the first specimens recorded from mainland Mexico (i.e., exclusive of Baja California) of the ordinoides group.” (Smith 1942: 113, but otherwise not explicitly explained). |
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