Charina trivirgata Cope, 1861, Cape San Lucas, Baja California Sur, Mexico.
OTHER COMMON NAMES
French: Boa a trois bandes; German: Deistreifen-Rosenboa. PHYSICAL CHARACTERISTICS
The rosy boa is a small, heavy-bodied snake with a small head that is barely distinct from the neck. The eyes are small, and the pupils are vertical. The tail is relatively long and thick, coming to a blunt point. The scales are smooth and shiny. Large specimens attain considerable bulk and girth. Adult females are about 28-36 in (71-95 cm) in total length; most adult males are 18-26 in (46-67 cm). The maximum size of this form approaches 4 ft (1.3 m).
The species ranges across southern California, southwestern Arizona, and northwestern Mexico.
This is a saxicolous species, strongly associated with rocky canyons and rocky ridges and hills.
Rosy boas are usually docile snakes that are deliberate in their actions and reluctant to bite in defense.
FEEDING ECOLOGY AND DIET
Small rodents and lizards make up the bulk of the diet.
A gravid female will complete a shed 16-20 days after ovulation. Usually babies are born 100-120 days after that shed. Litters typically are born from mid-August to early October. Clutch size is reported to vary from one to 13; most litters number four or five.
SIGNIFICANCE TO HUMANS
This is a very popular snake species in captivity; every year, thousands of captive-bred rosy boas are born. ♦
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