Slaty-grey Snake (species: Stegonotus cucullatus) in ALA: LIRS and surrounds using records to Oct. 2021 (Lizard Island Field Guide)
Stegonotus cucullatus
Slaty-grey Snake

©Chris Harrison: Stegonotus cucullatus near the Daintree River.
Kingdom Animalia
Phylum Chordata
Class Reptilia
Order Squamata
Family Colubridae
Genus Stegonotus
Species Stegonotus cucullatus



Distinguishing features

A dark brown/grey above grading to paler below, without a pale band behind the head. A small head and small eyes.

Active at dawn and dusk and at night. These snakes are harmless but can display aggressive behaviour if disturbed (Wilson and Swan, 2010).


  • Up to 130 cm (overall length, Wilson and Swan, 2010)



©Atlas of Living Australia: Australian distribution

Distribution and habitat preferences

Generally found in moist forests.


Slaty grey snakes feed on fishes, frogs, lizards, reptile eggs and small mammals.

Web resources


References that assist with identification

  • Wilson, S. and G. Swan (2010). A Complete Guide to Reptiles of Australia: 3rd Edition 558 pp. New Holland Publishers, Australia.

Other references

  • Limpus, C.H. (1982). The reptiles of Lizard Island, Herpetofauna, 13(2): 1-6. LIRS catalog number 73.