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Southwestern Speckled Rattlesnake

             Crotalus m. phyrrus

 

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Photo Courtesy of

Crotalus & Company

 

Size:

     

Birth: 6-9 inches
Adult: 24-40 inches
Range: United States - Az, Ca, Nm, Nv, Ut  and Mexico
Venom: LD50: Type a -
           
Venom Type: Hemotoxic
Antivenom: Crofab / Wyeth polyvalent
Scalation: Ventrals:
       Dorsal scale rows:

When Buying a Speckled Rattlesnake I highly recommend buying from a quality breeder.

Housing your snake: Housing of any venomous snake if of great importance. Be sure to have both a lockable room and cage when keeping this snake. Keeping venomous snakes is a huge responsibility. For more info on venomous cages please read our caging section.

 

Enclosure: Of great importance that the cage is of solid construction and lockable. Single Speckled Rattlesnakes can be kept in a 24wX24dX12h cage although double that size would be better. Glass aquariums are not recommended for rattlesnakes.

 

Heat: This is a desert species. Normally found in dry arid regions of the country. Temps should be in the high 80s to low 90s. You will only want to heat one side of the cage not worrying about the temp on the other side. this allows the snake to choose its own best temp range. Do not try to guess the temperature. You must use thermometers. Try to keep one placed in the cool end, the warm end, and at any other area where the snake spends most of its time. The hot areas should not exceed the maximum temperature by more than a couple of degrees.

Heating pads, people (not recommended) or ones developed especially for reptiles can be placed under half the tank. DO NOT use a hot rock as is. These "rocks" heat up to 105 F on the surface, capable of causing severe burns. Incandescent and other heat lights are impractical, they must be turned off a night (to create a drop in temperature) and they tend to bother nocturnal snakes. Snakes should be heated from below using a radiant heat source. You can supply radiant heat from below by many high quality reptile heating mats.. If the room temperature is always warm (in the low to mid part of the gradient required), then you may be able to make do with only one heat source.

 

Humidity and Water: Always provide a bowl of water for your snake. This is usually all the humidity they will need. I highly recommend heavy crock style bowls as they are not easily tipped over. Disinfect the bowl before placing it back in the tank. Make sure that the substrate remains dry at all times. One of the problems experienced in keeping Speckled Rattlesnakes is that the substrate was kept too damp which can cause bacterial, fungal and respiratory infections. Speckled rattlesnakes need low humidity so a small water bowl is best. Rattlesnakes are not soakers so a 2" bowl will suffice.

 

Furnishings: Rattlesnakes like shelters of some sort. These should be provided in both the cool and warm ends of the tanks. They can be purchased at your local pet store. Shelters can range from rock piles, rocky caves, half-tubes of tree bark, and upside-down flower pots or you can use recycled facial tissue and other suitably sized boxes as they are easily disposed of and replaced when they get soiled, they just don't look as nice. This is very important if the enclosure is in a high traffic area.

 

Substrate: The most commonly used substrate for rattlesnakes is newspaper, cypress and sand. Do not use cedar, redwood and possibly pine as they are toxic. Astroturf, outdoor carpeting, aquarium gravel and silica free sand are commonly used and should washed and dried before use. I personally prefer sand mixed with pea gravel as it is their natural substrate and easiest to clean. Although usable i do not recommend aspen, bark or cypress as they hold too much humidity for this species. The real key to substrates is how difficult they are to clean and change, and how often you are likely to do it. Try to find the balance between providing interest and variety for your snake and what you can reasonably do on a least weekly basis.

 

Feeding: As a general rule try to feed mice that are as big around as the widest part of your snake's body. Start captive bred neonates on pink mice and feeding them is rarely a problem if purchased from a quality breeder as they will assure it is feeding well prior to the sale.  Frozen/defrosted mice are recommended over live mice, make sure to defrost completely (leave under a light, on counter, or soaking in warm water). Hatchlings should be fed twice a week and adults only once every 7-10 days. Hatchlings can be started on one/two day old pinkie mice. Rattlesnakes are hungrier in the spring and summer, slowing down during the fall and may stop feeding during the winter even though the may still be active.

Written By : Daniel Stokkers

 

 

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