Seven-rock snake-necked turtle
| Seven-rock snake-necked turtle | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Seven-rock snake-necked turtle ( Chelodina oblonga ) |
||||||||||||
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Chelodina oblonga | ||||||||||||
| JE Gray , 1841 |
The seven- rock snake-necked turtle ( Chelodina oblonga , Syn . : Macrochelodina oblonga , Chelodina seven rocki , Chelodina intergularis , Chelodina rugosa ) occurs in northeast New Guinea and northeast Australia on the Cape York Peninsula .
description
The seven-rock snake-necked turtle reaches a length of up to 30 cm and is one of the largest representatives of the snake-necked turtle . The carapace has a reddish brown, in some specimens almost black basic color, is smooth and much wider at the back than at the front. The belly armor is yellow to gray-yellow. The edge shields (marginal shields) are bent upwards at the edges. The relatively small head merges into a very long neck. On the upper side, the head and neck are colored dark gray to almost black. A yellow stripe runs from the tip of the snout to the neck. The small eyes are very far forward on the skull. The underside of the head, the throat and the underside of the neck are yellowish to light brown in color.
Way of life
The seven-rock snake-necked turtle inhabits slow-flowing waters, swamps and seasonal watering holes; when these dry out, the animals bury themselves in the mud or migrate to other bodies of water. The seven-rocked snake-necked turtle spends more time out of the water than other snake-necked turtles and feeds exclusively on carnivore . The female lays two to four times a year between 9 and 21 eggs weighing an average of 12 g in the mud under water. The development of the embryos begins only after the water has dried up and the eggs are no longer covered by the water; this breeding behavior is unique among turtles. Depending on the incubation temperature , the young hatch after 76 to 163 days.
literature
- Gerhard Müller: Turtles , Eugen Ulmer Verlag, Stuttgart. ISBN 3-8001-7258-5
Web links
- Chelodina oblonga in The Reptile Database
- Chelodina oblonga inthe IUCN 2013 Red List of Threatened Species . Listed by: Tortoise & Freshwater Turtle Specialist Group, 1996. Retrieved December 14, 2013.
Individual evidence
- ↑ Rod Kennett, Damien A. Fordham, Erica Alacs, Ben Corey & Arthur Georges: Chelodina oblonga Gray 1841 - Northern Snake-Necked Turtle Conservation Biology of Freshwater Turtles and Tortoises: A Compilation Project of the IUCN / SSC Tortoise and Freshwater Turtle Specialist Group . Chelonian Research Monographs No. 5 doi : 10.3854 / crm.5.077.oblonga.v1.2014 ( ISSN 1088-7105 ), February 28, 2014 (English).