The western hognose snake is a species of snake in the family Colubridae. The species is endemic to North America. There are three subspecies that are recognized as being valid, including the nominotypical subspecies.
Western hognose snake
Western hognose snake specimen being held by a human
A snake skeleton consists primarily of the skull, vertebrae, and ribs, with only vestigial remnants of the limbs.
Lateral view of the skull of a Burmese python, with visible kinetic joints labeled. Red = highly mobile, green = slightly mobile, blue = immobile.
An aglyphous snake. A Burmese python skull (Python bivittatus)
An opisthoglyphous snake. A hognose snake skull (Heterodon nasicus)
A proteroglyphous snake. A king cobra skull (Ophiophagus hannah)