Guardian Nature School Team Contact Blog Project Noah Facebook Project Noah Twitter

A worldwide community photographing and learning about wildlife

Join Project Noah!
nature school apple icon

Project Noah Nature School visit nature school

Common rat snake

Ptyas mucosa maximus


The sub species of these Ptyas mucosa maximus is endemic to Sri Lanka The specific name of the Rat snake in Latin " mucosus" implies slimy, an erroneous belief held by many. The Rat snake is a large snake. Many rat snakes over eight feet ( 2400 mm) long have been observed. The largest specimen seen was at Hanthana Mountain, Kandy that measured 3000mm. The head is elongate, the eyes are large and the neck distinct. The body is long and cylindrical. The tail is long, round and tapering. The Rat Snake is The commenest snake in the country form the highest altitude. (2200 mm) to the sea level. The dorsal ground ground color varies in the rat snake. Four distinct color variations were observed ; 1) mixture of yellow/ brown, 2) Olive and yellow, 3) Black, and, 4) Albino. The commonly found color variations are former two. This is a terrestrial snake with diurnal habits. The natural habitats of the rat snake are plantations paddt fields and humen habitations. They are active snakes. They climb trees and roofs in search of its prey. Though this snake is popularly know as the rat snake its main food consists of amphibians. The female lays 10 to 30 large eggs, usually in a termite mound, or tree hole. Rat Snake can be bold and fierce when cornered may bite savagely. The Ptyas mucosus maximus is a non-venomous snake. There is a popular belief that if a rat snake bites, other snakes will not bite that particular person.

Species ID Suggestions

Sign in to suggest organism ID


Bhagya Herath
Bhagya Herath 10 years ago

Thank you Sau.....

Saumya Wanniarachchi
Saumya Wanniarachchi 10 years ago

Amazing ! mesmerizing eyes !

Bhagya Herath
Bhagya Herath 10 years ago

Thanks a lot Adi and Dilan....

Dilan Chathuranga
Dilan Chathuranga 10 years ago

wow!!excellent shot Bhagya!!

Adarsha B S
Adarsha B S 10 years ago

Such a gorgeous spotting :) Love it :)

Bhagya Herath
Bhagya Herath 10 years ago

Thanks Cha....

Chamalka Dulmini
Chamalka Dulmini 10 years ago

wow .......

Bhagya Herath
Spotted by
Bhagya Herath

Kandy, Central Province, Sri Lanka

Spotted on Jan 8, 2014
Submitted on Jan 10, 2014

Related Spottings

Indian Rat Snake (Oriental Rat Snake) Male rat snake fight Oriental ratsnake indian rat snake

Nearby Spottings

group of catapillers earthstar Big female spider in its web with two small male spiders and its eggs golden silk orb-weaver
Noah Guardians
Noah Sponsors
join Project Noah Team

Join the Project Noah Team