Crotalus oreganus lutosus Alternate Name(s): Rattler Venom Status: Venomous Characteristics: This strongly patterned often feisty rattler is adult at from 30 to 42”
Crotalus oreganus helleri Alternate Name(s): Rattler Venom Status: Venomous Characteristics: Although often smaller, this variable rattlesnake may occasionally exceed 4’ by a few
Crotalus oreganus concolor Alternate Name(s): Rattler Venom Status: Venomous Characteristics: This small subspecies of the western rattlesnake is adult at a length of
Crotalus oreganus abyssus Alternate Name(s): Rattler Venom Status: Venomous Characteristics: Adults of this subspecies measure 3 to 4 1/2’ in length. Ground color
Crotalus molossus molossus Alternate Name(s): Black-tailed Venom Status: Venomous Characteristics: A pretty and usually responsive, quick to stand its ground, 3 to 3
Crotalus molossus ornatus Alternate Name(s): Black-tailed Venom Status: Venomous Characteristics: A pretty and usually defensively responsive, 3 to 3 ½ foot long rattlesnake
Crotalus lepidus lepidus Alternate Name(s): Rock Rattler Venom Status: Venomous Characteristics: One of the smaller (about 2’) rattlesnakes, this is the northeasternmost subspecies
Crotalus lepidus klauberi Alternate Name(s): Green Rock Rattler Venom Status: Venomous Characteristics: One of the smaller rattlesnakes (18-24”), this westerly subspecies of rock
Crotalus horridus atricaudatus Alternate Name(s): Canebrake Rattlesnake Venom Status: Venomous Characteristics: The montane and northern form tends to be yellow, buff, or black
Crotalus cerberus Alternate Name(s): Horned Rattler Venom Status: Venomous Characteristics: Gray through various shades of brown to black. A great amount of metachrosis
