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Description
Rosy Boa (Baja Locality)
Lichanura trivirgata saslowi
Common Names: Rosy boa, Desert rosy boa
Species Overview
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Size: Adults average 2.5–4 feet (76–120 cm), with females typically larger and bulkier than males.
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Appearance: Baja Rosy Boas often display a triple-striped pattern of dark brown, orange, or reddish bands running along a lighter background. Coloration varies depending on the precise region within the Baja California Peninsula, ranging from bold contrasting stripes to softer, more muted tones. The belly is pale, often unmarked.
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Distribution: Found throughout the Baja California Peninsula in Mexico.
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Habitat: Prefers rocky desert slopes, scrublands, and arid canyons where crevices provide shelter and hunting opportunities.
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Behaviour: A primarily nocturnal or crepuscular ambush predator that hunts small mammals, reptiles, and birds. They are slow-moving, secretive, and spend much of the day hidden under rocks or in burrows.
Captive Care
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Enclosure: A 20–30 gallon tank is sufficient for most adults. Provide multiple hides and a rocky, desert-style setup to mimic their natural environment. Secure lids are necessary as Rosy Boas are strong, determined escape artists.
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Temperature & Humidity: Maintain a gradient of 78–82°F (25–28°C) with a basking spot at 88–92°F (31–33°C). Nighttime temperatures can safely drop to 70–72°F (21–22°C). Humidity should be kept low, around 25–40%, with a small humid hide offered during shedding.
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Diet: Juveniles feed on pinky mice every 5–7 days; adults on small mice or fuzzy rats every 10–14 days. They have efficient metabolisms and should not be overfed.
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Behaviour in Captivity: Known for being docile, slow-moving, and easy to handle, Rosy Boas are among the most beginner-friendly boa species. They rarely bite but may ball up or musk when threatened.
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Special Considerations: Care requirements remain consistent across Rosy Boa localities, but natural coloration and pattern vary by region.
Locality Note
The Baja locality Rosy Boa is prized for its striped appearance and regional variation in color intensity. Maintaining locality-pure lines is important for breeders and collectors, as Baja Rosy Boas differ in appearance from U.S. Rosy Boa localities such as those from California or Arizona.