Adults usually attain a length of 64-90 cm, with some growing to 96 cm. The subspecies has a heavy body and a relatively long This species is classified as Least Concern (LC) on the IUCN Red List of Threatened Species (v3.1, 2001). Species are listed as such due to their wide distribution, presumed large population, or because it is unlikely to be declining fast enough to qualify for listing in a more threatened category. The population trend is unknown. Year assessed: 2007.[tail: 16-19% of total body length in males and 13-18% in females.