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Salvadora grahamiae, also known commonly as the eastern patch-nosed snake and the mountain patchnose snake, is a species of snake in the family Colubridae. The species is native to the southwestern United States and adjacent northeastern Mexico .
Salvadora hexalepis, the western patch-nosed snake, is a species of non-venomous colubrid snake, which is endemic to the southwestern United States and northern Mexico. [ 5 ] Geographic range
Salvadora lineata, the Texas patchnose snake, is a species of snake of the family Colubridae. [1] The snake is found in the United States and Mexico. [1] References
Small and mostly unseen, most spiders are harmless to humans. However, some species possess venom which can be dangerous. Black widows and brown recluses use their toxins primarily to subdue prey.
Salvadora hexalepis virgultea Bogert, 1935 – coast patchnose snake; Salvadora intermedia Hartweg, 1940 – Oaxacan patchnose snake; Salvadora lemniscata (Cope, 1895) – Pacific patchnose snake; Salvadora lineata Schmidt, 1940 – Texas patchnose snake; Salvadora mexicana (A.M.C. Duméril, Bibron & A.H.A. Duméril, 1854) – Mexican patchnose ...
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The United States has about 30 species of venomous snakes, which include 23 species of rattlesnakes, three species of coral snakes, two species of cottonmouth, and two species of copperhead. At least one species of venomous snake is found in every state except Hawaii, Maine, Rhode Island, [4] and Alaska. Timber Rattlesnakes once lived in Rhode ...
The Common death adder (Acanthophis antarcticus) is a highly venomous snake species with a 50–60% untreated mortality rate. [87] It is also the fastest striking venomous snake in the world. [88] A death adder can go from a strike position, to strike and envenoming their prey, and back to strike position again, in less than 0.15 seconds. [88]