Caring for the Newly Discovered Rhynchocalamus hejazicus: What Exotic Keepers Need to Know | Exotic Nest

In early 2024 researchers announced the discovery of a previously unknown snake species in Saudi Arabia’s Hejaz region. The new taxon, Rhynchocalamus hejazicus, is a small, slender colubrid distinguished by a striking black collar and a reddish dorsal hue. A second, uniformly black form—referred to as the melanistic morphotype—has also been documented. While the find excites herpetologists, it also raises questions for exotic‑pet enthusiasts about the species’ husbandry needs, behavior, and the ethical considerations of keeping a wild, newly described animal.

Natural Habitat and Climate

R. hejazicus inhabits the semi‑arid foothills and rocky scrublands of the Hejaz mountains, an area that experiences hot summers (often exceeding 40 °C) and cool, occasionally rainy winters. The snakes are most active during the cooler parts of the day, seeking shelter under stones, in crevices, or beneath sparse vegetation to avoid extreme heat. Soil composition is typically sandy‑loam with good drainage, and the micro‑habitat includes occasional patches of leaf litter that retain modest humidity.

Diet in the Wild

Observations suggest that R. hejazicus preys on small lizards, juvenile geckos, and occasionally invertebrates such as large beetles. Their slender heads and quick strike indicate a diet of agile prey that can be captured in tight spaces. In captivity, a diet that mimics this natural intake would consist of appropriately sized feeder lizards (e.g., dwarf geckos or anoles) and, where necessary, gut‑loaded insects to provide essential nutrients.

Behavioral Traits

Field notes describe the species as shy and primarily nocturnal, retreating quickly when approached. The black collar appears to be a visual cue used in intraspecific communication, possibly during mating or territorial displays. The melanistic morphotype, while rarer, exhibits the same secretive habits but may be slightly more prone to basking in the limited sunlight available in its habitat, likely to regulate body temperature.

Considerations for Potential Keepers

• Legal status: Because R. hejazicus is a newly described, wild‑collected species, it is likely protected under Saudi wildlife regulations and international conventions such as CITES. Prospective owners must verify permits and export/import legality before any acquisition.
• Conservation impact: Removing individuals from a small, localized population can jeopardize the species’ survival. Ethical ownership means supporting in‑situ conservation rather than seeking a pet.
• Captive breeding potential: No captive breeding program exists yet. Until reliable breeding protocols are established, any captive specimen would be a wild‑caught animal, further stressing natural populations.
• Enclosure design: Replicate the rocky, well‑drained environment of the Hejaz foothills. A 40‑gallon terrarium with a secure lid, a substrate of sand‑loam mixed with leaf litter, and several flat stones for basking and hiding is a good starting point.
• Temperature and humidity: Provide a thermal gradient from 28 °C on the cool side to 32 °C on the warm side, with a brief basking spot of 35 °C for the melanistic morph. Nighttime temperatures can drop to 20‑22 °C. Maintain humidity at 30‑40 % to reflect the arid environment, using a misting system sparingly.
• Feeding schedule: Offer appropriately sized prey every 5‑7 days. Monitor body condition; over‑feeding can lead to obesity, while under‑feeding may cause stress.

Responsible Ownership Practices

Even if legal avenues to keep R. hejazicus become available, responsible owners should prioritize the following:

1. Obtain the animal from a reputable, licensed breeder or a conservation‑focused captive‑breeding program, never from the wild.
2. Commit to lifelong care, recognizing that snakes can live 10‑15 years in captivity with proper husbandry.
3. Educate yourself on the species’ specific health needs, including signs of respiratory infection, shedding problems, and parasites common in desert‑dwelling snakes.
4. Participate in or support research initiatives that aim to understand the species’ ecology, which can inform better captive care and conservation strategies.
5. Never release captive‑bred snakes into non‑native habitats, as they could disrupt local ecosystems.

Conclusion

The discovery of Rhynchocalamus hejazicus adds a vibrant new member to the world’s snake fauna, offering both scientific intrigue and a reminder of the delicate balance between curiosity and conservation. While its striking black collar and occasional melanistic form may tempt exotic‑pet enthusiasts, the priority must remain the preservation of its wild populations and habitat. For those committed to responsible stewardship, supporting habitat protection and future captive‑breeding programs—rather than seeking a wild‑caught specimen—ensures that this remarkable snake can be admired for generations to come.

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Source: https://scitechdaily.com/mysterious-new-snake-species-discovered-in-saudi-arabia/