Mass: up to 350 lbs.
The reticulated python has a complex, geometric pattern, which incorporates a number of different colors. A series of irregular diamond shapes are positioned dorsally along the
back, usually flanked with smaller markings which have light centers. This gives the snake a netlike pattern, which is where it gets its common and Latin name. The head of this species is unmarked with only a conspicuous line running from each eye to the angle of the jaws. The size of this animal along with the unmarked head is usually enough to identify this species, even though there is some variation in pattern (Mattison 1999). Some of the variations in the pattern of this snake are listed as; Normal, Yellow Head, Calico, Albino, Tiger, Super Tiger, Jaguar and island forms (McCurley 1999). This is an extremely large snake, considered by many as the largest snake in the world (definitely the longest). Lengths of more than 16 feet are common and sizes of 25 feet or more occur regularly. The largest Reticulated python maintained in captivity was at the Pittsburgh Zoo; a 28.5 ft 320 lbs female named Colossus. They are sexually dimorphic in size, as females attain larger sizes than males. The largest reticulated python ever measured which was 32 ft 9.5 inches and holds the record for the largest snake in the world according to the Guiness Book of World Records, 1991 (Murphy and Henderson 1997). This is also a long lived snake; accounts of specimens 25 years old are commonplace in captivity.
Range mass: 0 to 158 kg.
Average mass: 0 kg.
Average basal metabolic rate: 2.7349 W.