Western Hognose (Super Arctic Watermelon)

Western Hognose (Super Arctic Watermelon)

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 Super Arctic Watermelon Western Hognose is an exceptional and highly visual combination morph known for its dramatic contrast and striking colour depth. The Super Arctic gene (the homozygous form of Arctic) produces bold black-and-white patterning with crisp outlines and a cool-toned base. When paired with the Watermelon gene—a selectively bred line that enhances pink and reddish hues—the result is a snake with unique icy-grey contrast offset by faint rosy undertones. This combination creates one of the most visually distinctive and eye-catching morphs in the species, blending the sharp monochrome of the Super Arctic with the warmth of selective red enhancement.

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

Super Arctic (Incomplete Dominant): The homozygous form of the Arctic gene, producing intense black-and-white contrast with crisp, high-definition markings. This trait enhances pattern sharpness and removes much of the warm pigmentation.

Watermelon (Polygenic Line): A selectively bred line designed to intensify red, pink, and orange tones. When combined with cool-toned morphs like Arctic, it can produce subtle blushes of rose or lavender beneath the grayscale pattern.

Genetic Combination Summary

The Western Hognose (Super Arctic Watermelon) expresses one incomplete dominant trait in its homozygous form and one polygenic trait:

• Super Arctic (Incomplete Dominant): Produces high-contrast black-and-white patterning and cool undertones.

• Watermelon (Polygenic): Adds warmth and pinkish or reddish influence, softening the sharp Arctic contrast.

This morph is a standout example of balance between sharp contrast and soft warmth. The Super Arctic Watermelon’s refined pattern and pastel undertones make it a visually elite combination, prized for both display and selective breeding focused on high-definition, colour-enhanced offspring.