Brown basilisk

Brown basilisk
Conservation status
	; Least Concern (IUCN 3.1)[1]
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Order:	Squamata
Suborder:	Iguania
Family:	Corytophanidae
Genus:	Basiliscus
Species:	B. vittatus
Binomial name
	Basiliscus vittatus; Wiegmann, 1828

The brown basilisk (Basiliscus vittatus), also commonly referred to as the striped basilisk or in some areas as the common basilisk, is a species of basilisk lizard in the family Corytophanidae. The species is native to Mexico, Central America and adjacent northwestern Colombia,[2][3] and has been introduced into the U.S. state of Florida as a feral species.[4] The brown basilisk has large hind feet with flaps of skin between each toe. The fact that they move quickly across the water, aided by their web-like feet, gives them the appearance of "walking on water".

Description

The male brown basilisk can reach 61 centimetres (24 in) in total length (including tail), but the female is somewhat smaller. It has a three-part dorsal crest on the head, along the back, and along the tail. Coloration is brown or olive brown with black crossbands. The crossbands are usually only on the flanks and on the dorsal crest. There is also a white stripe, which extends from the eyes to the rear legs. The male has a larger crest than the female. The brown basilisk weighs 200–600 g (0.44–1.32 lb). It has long toes with sharp claws.

Etymology and taxonomy

The brown basilisk's generic name Basiliscus is taken from the creature of Greek mythology made up of parts of a rooster, snake, and lion that could turn a man to stone by its gaze: the basilisk. This name derives from the Greek basilískos (βασιλίσκος) meaning "little king". This generic name was given in Carl Linnaeus' 10th edition of Systema Naturae.

Running on water

Costa Rica

Smaller brown basilisks can run about 10–20 m (33–66 ft) on the water without sinking. Young brown basilisks can usually run farther than older ones. If the animal faces danger, it starts to run very fast on the surface of a river or a lake. Then the flaps on its hind feet are opened and thus more surface area is provided for it to run on water.

Behavior

Basiliscus vittatus is in the same infraorder as the family Iguanidae. Like most reptiles, the brown basilisk is active during the day. Its outstanding camouflage allows it to remain motionless and very hard to detect. The maximum lifespan of the brown basilisk is probably around 7–8 years. In the wild, most die much sooner.

Reproduction

Female brown basilisks lay about 2–18 eggs, five to eight times a year. Eggs hatch after about three months and the babies weigh about 2 g (0.071 oz).

Gallery

Juvenile before developing crests
Closeup of face
In Florida, United States

References

Wilson, L.D.; Nicholson, K. & Flores-Villela, O. (2016). "Basiliscus vittatus". IUCN Red List of Threatened Species. 2016: e.T197460A2485788. doi:10.2305/IUCN.UK.2016-1.RLTS.T197460A2485788.en.
Köhler G (2008). Reptiles of Central America, 2nd Edition. Offenbach, Germany: Herpeton Verlag. 400 pp. ISBN 978-3936180282.
Savage JM (2005). The Amphibians and Reptiles of Costa Rica: A Herpetofauna between Two Continents, between Two Seas. Chicago and London: University of Chicago Press. xx + 945 pp. ISBN 978-0226735382.
Conant, Roger; Collins, Joseph T. (1991). A Field Guide to Reptiles and Amphibians Eastern/Central North America. Boston, Massachusetts: Houghton Mifflin Company. ISBN 0-395-58389-6.