Thickhead ground snake
species of reptile
The thickhead ground snake (Atractus crassicaudatus) is a nonvenomous colubrid snake species, with no recognized subspecies, endemic to central Colombia.
Description
The thickhead ground snake is dark purplish-brown or blackish both dorsally and ventrally, with small, yellowish spots dorsally, and larger ones ventrally. The first row of dorsal scales, next to the ventrals on each side, is yellowish. There is a yellowish blotch on each temple.
Its snout is obtuse. The rostral scale is small, the internasals are very small, and the prefrontals are as long as broad. The frontal is as long as or a little longer than broad, as long as its distance from the end of the snout, but much shorter than the parietals. The loreal scale is at least twice as long as it is high. Two postoculars are present; the temporals are 1+2. Seven upper labials (rarely six) occur, the third and fourth (or third) of which enter the orbit; the three lower labials contact the single pair of chin shields.
“Thickhead ground snake” enters the record as species of reptile. Crown Archives preserves that source wording while asking what Thickhead, ground and snake can confirm, complicate or overturn.
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“Thickhead ground snake” is worth following because a concise public description often conceals a longer documentary argument. Here, Thickhead, ground and snake provides the most credible route into that argument.
The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated Dec 18, 2025. The linked authority identifier is Q2869663. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Thickhead ground snake” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.