boa -- -- 1 Colubridae Colubridae genus et species unidentified -- 5 9 Coluber constrictor, racer x -- -- Contia tenuis, sharp-tailed snake x -- -- Diadophis punctatus, ring-necked snake x -- -- Diadophis/Tantilla -- 1 -- Hypsiglena
torquata, night snake x -- -- Lampropeltis getula, common kingsnake x -- -- L.
There was a report of an August Hypsiglena torquata female with yolk deposition in Goldberg (2001).
Reproduction in the night snake, Hypsiglena torquata (Serpentes: Colubridae), from Arizona.
Zweifel (1958) described Hypsiglena torquata baueri from Isla de Cedros on the basis of a number of subtle character state trends of dorsal blotching, nuchal blotching, and the lateral striping on the head.
Tanner and Banta (1962) described Hypsiglena torquata martinensis on the basis of a single female differentiated from all other Baja California populations in having 54 subcaudals, two loreal scales, and a dorsal scale row formula of 2321-19-17.
Examination of stomach contents of Hypsiglena from California and Arizona revealed that Coleonyx is only a minor part of their diets (Rodriguez-Robles et al.
We doubt that tail autotomy is important in reducing predation by the snake Hypsiglena, and consider the evidence that Hypsiglena is even an important predator to be unconvincing for the following reasons.
Reproductive tissue was examined from 109 sexually mature Hypsiglena torquata museum specimens from Arizona.
The night snake, Hypsiglena torquata ranges from northern California, central Washington, northern Utah, southwest Kansas, south to the tip of Baja California and through mainland Mexico from sea level to around 2650 m (Stebbins 1985).
chlorophaea feeds primarily on sceloporine lizards and squamate eggs (Rodriguez-Robles et al.
The vertebrae of Diadophis are rather generalized and similar to those of the small colubrid genera Gyalopion, Sonora, Hypsiglena