The subspecies of Western Terrestrial Gartersnake that occurs in British Columbia is also called the Wandering Gartersnake. It is a medium-sized snake ranging between 15-75 cm in length, with strongly keeledDefinition:Scales that contain a ridge down the centre that may or may not extend to the tip of the scale. scales and a large head with large eyes and round pupils. Females typically grow larger than males, as fecundityDefinition:The ability to produce an abundance of offspring or new growth. increases with body size. It can be differentiated from the other Gartersnake species in British Columbia by its 10 lower, and 8 upper labial scales. Western Terrestrial Gartersnakes have two distinct colour morphs in British Columbia: a darker coastal morph, and a lighter interior morph. Both types typically have a dorsalDefinition:Relating to the top or back. stripe and 2 lateralDefinition:Relating to the sides or flanks. stripes, although there is substantial variation in the colour, length, and vibrance of the stripes between populations. The interior morph is most common and has a lighter brown-beige body colour with a yellow dorsal stripe line by two rows of dark spots, and lateral stripes that are also yellow but lighter and less distinct than the dorsal stripe. The darker coastal morph has a dark brown-black body colour with an orange-yellow dorsal stripe and two yellow lateral stripes. In both morphs, the belly is typically pale and may have darker blotching or markings.