Hypomelanism in Irwin's Turtle, Elseya irwini, from the Johnstone River, North Queensland, Australia (original) (raw)
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1 December 2011 Hypomelanism in Irwin's Turtle, Elseya irwini, from the Johnstone River, North Queensland, Australia
Grant S. Turner
Author Affiliations +
Grant S. Turner1
1PO Box 2035, Innisfail, Queensland 4860, Australia [ ] g.s.turner@hotmail.com
Abstract
The occurrence of hypomelanism in a population of Irwin's turtles (Elseya irwini) was found to affect only adult turtles (approximately 10%), primarily females. Its complete absence in immature and hatchling turtles indicates that the condition develops ontogenetically through the progressive, localized loss of specific types of chromatophores. Hypomelanistic females were lacking in a variety of pigments affecting virtually all parts of the body and appeared to represent extreme forms of the natural depigmentation process that accompanies maturation in this species.
Chelonian Research Foundation
Citation Download Citation
Grant S. Turner "Hypomelanism in Irwin's Turtle, Elseya irwini, from the Johnstone River, North Queensland, Australia," Chelonian Conservation and Biology 10(2), 275-281, (1 December 2011). https://doi.org/10.2744/CCB-0851.1
Received: 11 April 2010; Accepted: 1 July 2011; Published: 1 December 2011
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