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Mexican Smallhead Rattlesnake

Crotalus intermedius

<i>Crotalus intermedius</i> (commonly known as Mexican Smallhead Rattlesnake) is native to highlands of central and southern Mexico, where it inhabits montane pine-oak forests, rock slides, and highland woodlands.

Family
Viperidae
Origin
altopiani del Messico centrale e meridionale
Origin
Central America and Caribbean
Tank use
Used in 0 tanks

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Species challenges
Water Temperature

12 °C - 24 °C

pH Value

n/a

Water type

Terrestrial

Basking spot

26 °C

UVB

Low

Species description

Geographical Origin and Habitat: Crotalus intermedius (commonly known as Mexican Smallhead Rattlesnake) is native to highlands of central and southern Mexico, where it inhabits montane pine-oak forests, rock slides, and highland woodlands.

Taxonomy and Genetics: Belongs to the family Viperidae, genus Crotalus. It is studied for its unique venom genetics and specialized physiological adaptations.

Behavior and Habits: Predominantly terrestrial, solitary, and nocturnal. It spends most of the day camouflaged in leaf litter or under shelters waiting for prey.

Morphology: Adults reach an average size of 50.0 cm. Males typically exhibit longer tails than adult females.

Care, breeding and tankmates

Terrarium Setup: Requires an escape-proof terrarium of at least 100 liters with natural loose substrate and secure hiding spots.

Lighting and Heating: Carnivorous diet consisting of properly sized rodents fed via long feeding tongs. Supplement with vitamins.

Humidity and Hydration: Keep ambient temperatures at 12.0-24.0°C with a basking spot of 26.0°C. Provide low UVB.

Feeding and Supplementation: Solitary species, must be housed individually. Keeping multiple snakes together leads to severe stress.

Compatibility: Breeding is difficult in captivity, requiring a cooling period and careful introduction under supervision.

Health and Common Diseases: Prone to respiratory tract infections if ventilation is poor, and blister disease if the substrate is excessively wet.

Reptile profile

Diet
Carnivoro
Humidity
50 % - 70 %
Ambient temperature
19 °C
Basking spot
26 °C
UVB
Low
Adult size
50 cm
Minimum enclosure
100 L

Image gallery

Licensed images linked to the species or, when marked, to the closest representative taxon.

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Last updated: 06/13/2026