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A xanthochromistic and normal Argentine horned frog
Xanthochromism (also called xanthochroism or xanthism), from the Greek xanthos (ξανθός) "yellow" and chroma (χρώμα) "color", is an unusually yellow pigmentation in an animal. It is often associated with the lack of usual red pigmentation and its replacement with yellow. The cause is usually genetic but may also be related to the animal's diet. A Cornell University survey of unusual-looking birds visiting feeders reported that 4% of such birds were described as xanthochromistic (compared with 76% albinistic). The opposite of xanthochromism, a deficiency in or complete absence of yellow pigment, is known as axanthism.
Birds exhibiting genetic xanthochromism, especially deliberately bred mutations of several species of parrot in aviculture, are termed "lutinos". Wild birds in which xanthochromism has been recorded include yellow wagtail, wood warbler, Cape May warbler, rose-breasted grosbeak, evening grosbeak, red-bellied woodpecker, scarlet tanager, northern cardinal, great spotted woodpecker, common tailorbird, crimson-breasted shrike, kākāriki and kea.
opposite of xanthochromism, a deficiency in or complete absence of yellow pigment, is known as axanthism. Birds exhibiting genetic xanthochromism, especially...
Lutino is a bird that exhibits a yellow pigmentation known as xanthochromism. It may refer to: Lutino budgies Lutino cockatiel mutation Lutino rosy-faced...
it produces colour shifts that are termed schizochroisms (including xanthochromism – an overabundance of yellow – and axanthism – lack of yellow – which...
the cause. Argyria Diabetic dermadromes List of cutaneous conditions Xanthochromism Haught JM, Patel S, English JC (2007). "Xanthoderma: a clinical review"...
Erythrism Heterochromia iridum Leucism Melanism Piebaldism Vitiligo Xanthochromism "dyschromia - definition of dyschromia in the Medical dictionary - by...
and the eyes still have iridophores. The opposite of axanthism is xanthochromism, which is an excess of yellow coloration. There are three basic types...
a skin condition which causes areas of the skin to lose its colour Xanthochromism, an unusual yellow colouration in animals Peutz–Jeghers syndrome, dark...
pigmentation Vitiligo (or leukoderma), patchy loss of dermal pigmentation Xanthochromism and axanthism, unusually yellow pigmentation and lack of yellow pigment...
one group of authors has even advocated measuring bilirubin levels. Xanthochromism Cruickshank, A; Auld, P.; Beetham, R.; et al. (May 2008). "Revised National...
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