- Ruthven's Kingsnake
Queretaro Kingsnake
- Lampropeltis ruthveni
- Size:
- Hatchling: 6 - 7 in.
- Adult: 24-36 inches
- Scalation:
- Dorsal: 23 at mid body
- Ventral: 182 - 196
- Sub caudal: 49 - 57
- Infra labial: 8 - 9
- Supra labial: 7 - 8
- Anal Plate: single
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Written by John Cherry
Coloration
This animal is best described as an animal that at first glance closely resembles a Milksnake of some type. Upon closer observation things just don't exactly look right. The black rings tend to have a light lime green outline. The black and white colors are usually only two or three scales wide. White dorsal rings usually number 23 - 34. The albino form of this animal is in my opinion one of the true classics when it comes to albino's. BEAUTIFUL to say the least.
Head:
Top of head is black with red and/or tan markings. White ring at back of head.
Dorsal:
Ringed in white, red and black. Lime green margins on black rings.
Ventral:
Rings extending around entire body. Many times the red rings and black rings pale or disappear ventrally.
Range:
States of Michoacan, Quretaro, Jalisco and possibly into Durango, Mexico.
Habitat:
Rocky upland areas of the Mexican Plateau .
Prey:
In the wild these animals are known to feed on a variety of lizards and rodents.In captivity these animals fair very well on a diet of lab. raised mice. Juveniles sometime require new born pink mice scented with lizards. They tend to be very aggressive feeders once started well.
Behavior:
This is a species that does well in captivity. It is very secretive and requires a hiding box at all times. Somewhat reclusive in nature and the juveniles tend to be flighty. They are extremely beautiful snakes that are within reach of the average collector and receives a five star rating from most that keep it.
Breeding:
Breeding in captivity is achieved in the same manner as with all colubrids using the
following as a guideline. Towards the end of October cease feeding totally, allowing at least 2 -3 weeks at normal temperature for clearing of the gut. Then gradually reduce the ambient tempeture inside the cage to the lower 50's and maintain for a period of 3 months. Be sure and provide clean water and systematically check
animals for general condition and welfare during this period. After brumation and the animals are brought back up to optimum temperature of 78 - 82 degrees, feeding should resume for approx. three weeks and the pair should be placed together under supervision for short periods of time until copulation can be confirmed. An egg laying chamber partially filled with damp vermiculite or sphagnum moss is helpful. Eggs should be removed immediately after laying and placed in damp vermiculite for
the incubation period of 58 - 65 days at temperatures of 80 - 83 degrees
NOTE : This species is a problematic one in that displays a broad head and hemipenes that resembles the mexicana group, but has other characteristics of the Triangulum group. Hopefully this can be cleared up with more research.
Literature Cited:
Stebbins,Robert C. 1985 second editition revised. A field guide to Western Reptiles and Amphibians. Houghton Mifflin Company
Cherry, John & Cindy - Field & Breeding Notes
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Gallery Photo by Errtu
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Gallery Photo by Aaron
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Gallery Photo by Fleck
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Gallery Photo by Patton
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Gallery Photo by Justin Mitcham
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Gallery Photo by Justin Mitcham
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Recent Mexicana Kingsnakes Forum Posts
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