Western Hognose (Arctic)

Western Hognose (Arctic)

Scientific Name: Heterodon nasicus
Common Name: Western Hognose Snake

Species Overview

Size: Adult females typically reach 2–3 feet (0.6–0.9 m) in length, while males average 1.5–2 feet (0.45–0.6 m). Both sexes feature the species’ characteristic upturned snout, adapted for digging and burrowing in loose soils.

Appearance: The Arctic Western Hognose is a refined, high-contrast morph known for its clean patterning and cool-toned palette. This gene lightens and softens dark pigmentation, resulting in pale brown, grey, or silver base tones accented by sharply defined blotches. The pattern appears crisp and smooth, with reduced saturation that gives the snake a frosted, pastel appearance. When combined with other genes, the Arctic enhances clarity and balance, making it a cornerstone trait for producing some of the most visually appealing Western Hognose morphs.

Distribution: Native to central North America, from southern Canada through the Great Plains and into northern Mexico.

Habitat: Western Hognose Snakes inhabit open prairies, grasslands, and semi-arid regions with sandy or loose soil ideal for burrowing. In captivity, this morph thrives in terrestrial terrariums with soft substrate, climbing décor, and secure hiding areas.

Behaviour: Western Hognoses are diurnal, curious, and alert snakes known for their dramatic bluff displays, which may include hissing, neck flattening, or mock strikes. These displays are harmless, and with regular handling, they settle into confident, inquisitive animals.

Captive Care

Enclosure: Provide an enclosure at least 3 feet × 18 inches × 18 inches for adults, using deep, soft substrate such as aspen, soil, or a sand-soil blend. Include multiple hides, smooth décor, and low branches for enrichment.

Temperature & Humidity: Maintain a daytime gradient of 78–86°F (25–30°C) with a basking area near 90°F (32°C). Allow nighttime drops to 70–74°F (21–23°C). Keep humidity between 30–50%, slightly increasing during shedding.

Diet: Offer thawed rodents approximately 1.25× the width of the snake’s mid-body. Feed juveniles every 4–5 days and adults every 7–10 days. Western Hognoses are reliable feeders that adapt easily to routine schedules.

Behaviour in Captivity: Hardy, engaging, and active, Western Hognoses thrive with consistent care and stable conditions. They are often seen burrowing or exploring during daylight hours and tolerate handling well once accustomed.

Special Considerations: Western Hognoses are mildly rear-fanged, and their venom poses minimal risk to humans unless an allergic reaction occurs. Handle calmly and house them individually to avoid feeding-related aggression or stress.

Genetics Note

Arctic (Incomplete Dominant): Produces cooler, lighter tones and enhances contrast across the body. Patterning becomes cleaner and more defined, with muted dark blotches over a silvery or beige background. Super Arctic individuals display a dramatically frosted, grey-white appearance with highly reduced markings.

Genetic Combination Summary

The Western Hognose (Arctic) expresses a single incomplete dominant trait:

• Arctic (Incomplete Dominant): Refines contrast, lightens colouration, and improves overall pattern clarity.

This morph’s subtle, frosted appearance and versatility make it a staple in Western Hognose breeding. Its ability to enhance and balance other colour genes ensures it remains one of the most valued traits for creating visually striking combinations.