Thamnophis sirtalis annectens, commonly known as the Texas garter snake, is a subspecies of the common garter snake. It inhabits a variety of environments in Texas, from grasslands to woodlands. This snake is semi-aquatic, often found near water sources. It is non-venomous and feeds on amphibians, fish, and small mammals. Notably, it exhibits a distinctive pattern of stripes along its body, providing excellent camouflage in its natural habitat.

Thamnophis sirtalis annectens, commonly known as the Western Ribbon Snake, is native to North America. It is primarily found in the central United States, specifically in states such as Kansas, Nebraska, Oklahoma, and parts of Texas. The species' distribution is typically confined to the Great Plains region.

The Western Ribbon Snake inhabits a variety of environments but is most commonly found in areas with abundant water sources. It thrives in habitats such as marshes, streams, ponds, and wet meadows. The climate in these regions is generally temperate, with seasonal variations in temperature and precipitation.

Thamnophis sirtalis annectens is a semi-aquatic snake that plays a role as both predator and prey within its ecosystem. It primarily feeds on amphibians, fish, and small invertebrates, often hunting in or near water bodies. Its presence in these habitats contributes to the control of amphibian and fish populations, while it also serves as prey for larger predators like birds and mammals.