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What is Arizona Black Rattlesnake?

 Arizona black rattlesnake is a poisonous pit viper occurring in the southwestern United States. The pitviper subspecies is mainly diurnal, but in favorable conditions, it can be active at night also. Like other pit vipers, the snake makes use of heat sensing pits located on each side of the face to detect prey and predators. Kingdom: Animalia Phylum: Chordata Subphylum: Vertebrata Class: Reptilia Order: Squamata Suborder: Serpentes Family: Viperidae Subfamily: Crotalinae Genus: Crotalus Species: Crotalus oreganus Scientific Name: Crotalus oreganus cerberus

Barbour’s Montane Pit Viper - Mixcoatlus Barbouri

Barbour’s montane pit viper is a moderately stout species of venomous snake found only in Mexico. The species is terrestrial. At present, there are no recognized subspecies of this species.

Barbour’s Montane Pit Viper


KingdomAnimalia
PhylumChordata
ClassReptilia
OrderSquamata
SuborderSerpentes
FamilyViperidae
SubfamilyCrotalinae
GenusMixcoatlus
Scientific NameMixcoatlus barbouri

Description

Adults of M. barbouri generally grow to 30–40 cm (11¾-15¾ inches) in total length (including tail), with a maximum recorded total length of 51.0 cm (20 in). The species is terrestrial and moderately stout.

The color pattern consists of a blackish ground color, overlaid with a vague dorsal zig-zag stripe that extends down the flanks, which looks like a series of triangular markings. The skin between the scales is rust-colored, as are the sides of the head.

Geographic Range

Mixcoatlus barbouri is found in the highlands of the Sierra Madre del Sur in the state of Guerrero, Mexico.

The type locality given is "Omilteme [or Omiltemi], Guerrero, Mexico".

Habitat

The preferred habitats of M. barbouri are mountain areas at some 9,000 feet (2,740 m) elevation in rocky pine forests and clearings with bunch grass

Venom Fact

Venomous

Reproduction

Viviparous (giving birth to live young)

IUCN Conservation Status

Endangered

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