Salvadora hexalepis (Western Patch Nosed Snake) is a species of snakes in the family colubrid snakes. They are found in The Nearctic and The Neotropics. Individuals are known to live for 14.3 years.
Definition: The largest scale biogeographic division of the earth's surface based on the historic and evolutionary distribution patterns of plants and animals.
Definition: A grassland biome is a terrestrial biome which includes, across its entire spatial extent, an unbroken layer of grasses (Gramineae), sedges (Cyperaceae) or rushes (Juncaceae).