Thamnophis chrysocephalus (COPE, 1885)
Can you confirm these amateur observations of Thamnophis chrysocephalus?
|Higher Taxa||Colubridae (Natricinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)|
|Common Names||E: Goldenhead Garter Snake|
|Synonym||Eutaenia chrysocephala COPE 1885: 173|
Tropidonotus chrysocephalus — BOULENGER 1893: 203
Thamnophis eburatus TAYLOR 1940
Thamnophis chrysocephalus — SMITH 1942: 104
Thamnophis chrysocephalus — SMITH et al. 1950: 571
Thamnophis chrysocephalus — LINER 1994
Thamnophis chrysocephalus — LINER 2007
Thamnophis chrysocephalus — WALLACH et al. 2014: 720
|Distribution||Mexico (Guerrero, Oaxaca, Puebla, Veracruz)|
Type locality: Orizaba, Veracruz.
eburatus: Mexico (Oaxaca); Type locality: Mexico: Cerro San Felipe, Oaxaca; H. Roberts and E. H. Taylor; August 18, 1938. Map legend:
- Region according to the TDWG standard, not a precise distribution map.
NOTE: TDWG regions are generated automatically from the text in the distribution field and not in every cases it works well. We are working on it.
|Types||Holotype: USNM 30494|
Holotype: UIMNH 25067 [eburatus]
|Comment||Original description (from COPE 1885): The E. chrysocephala has a slender body, and a wide, flat head, with a large eye. The size of the latter contracts the frontal plate, so that it is not wider than the superciliaries posteriorly. The scuta are otherwise as usual. Superior labials eight, none higher than long, fourth and fifth below orbit. The inferior surfaces are darker than in E. collaris, which causes a better definition of the lateral line than in that species. There are representations of two rows of lateral black spots, but they are merely black scale-borders, those of the inferior row the more distinct. A similar row of black edges on the first row of scales. All of these spots become distinct on the sides of the neck. Nuchal spot large, black, and with a shallow notch behind; no occipital or other spots on the head. The gastrosteges have black bases, a character not seen in any of the other species here referred to. |
Gastrosteges, 151. Total length, M. .430; of tail, .135, or one-third the total.
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