Acromelanism

A cat with seal (black) point coloration.

Acromelanism or point coloration is a genetically determined, temperature-dependent pigmentation pattern, with full expression only occurring on legs, ears, tail, face and scrotum (in males). It is most recognized as the coloration of Siamese[1] and related breeds of cat, but can be found in dogs, rabbits, rats, mice, sheep, guinea pigs, minks, and gerbils.[2]

  1. ^ Miller, W.H.; Griffin, C.E.; Campbell, K.L.; Muller, G.H. (2013). Muller and Kirk's Small Animal Dermatology7: Muller and Kirk's Small Animal Dermatology. Elsevier/Mosby. p. 620. ISBN 9781416000280. Retrieved 2015-05-17.
  2. ^ Petrij, F (2001). "A Second Acromelanistic Allelomorph at the Albino Locus of the Mongolian Gerbil (Meriones unguiculatus)". The Journal of Heredity. 1 (1): 74–78. doi:10.1093/jhered/92.1.74. PMID 11336233.