Denisonia is a genus of venomous snakes endemic to Australia.
The following two species are recognized as being valid.
- Denisonia devisi (Waite & Longman, 1920) â" De Vis's banded snake or De Vis' banded snake (discussed in this article)
- Denisonia maculata (Steindachner, 1867) â" ornamental snake
The generic name, Denisonia, is in honor of William Thomas Denison, mid 19th century governor of parts of Australia. The specific name, devisi, is in honor of English herpetologist Charles Walter De Vis.
D. devisi is a short, thick and slightly flat snake. The eyes are set near the top of the head and have a conspicuous iris. D. devisi is yellowish brown to olive green in colour with irregular, ragged edged narrow dark bands running across the body. De Vis's banded snake is usually confused with death adders as both have thick, banded bodies. The main difference is that the De Vis' banded snakeâs tail does not taper abruptly and its head is not broad and triangular.
D. devisi are distributed throughout the alluvial flats of the mid eastern interiors of Australia.
Behaviour and habitat
D. devisi are sluggish snakes inhabiting low lying areas and particularly near sites subjected to seasonal flooding. During the day, this adder stays in soil cracks or deep cavities and emerges at night to feed on frogs.
D. devisi gives birth to fully formed young (viviparous).
- Genus Denisonia Krefft, 1869
- Krefft G. 1869. The Snakes of Australia; An Illustrated and Descriptive Catalogue of All the Known Species. Sydney: Thomas Richards, Government Printer. xxv + 100 pp. + Plates I-XII. (Denisonia, new genus, pp. 82-83 + Plate XI, figure 4).
- Waite ER, Longman HA. 1920. Descriptions of Little-known Australian Snakes. Rec. South Australian Mus. 1 (3): 173-180 + Plate XXVII. (Denisonia maculata var. devisi, new name, pp. 178-179, Text figure 36 + Plate XXVII, figure 2).
- Wilson, Steve. 2003. Reptiles of the Southern Brigalow Belt. Australia: World Wildlife Fund. pp. 33-34.