Canthal scales

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In snakes, the canthals are the scales along the upper surface of the canthus rostralis. They are located behind the level of the prenasal/postnasal suture and before the supraocular.[1] They are also described as being located along the edge of the crown between the internasals and the supraoculars.[2] If these are large scales that contact each other along the midline, they are more properly referred to as prefrontals.[1]

Cited references

  1. 1.0 1.1 Campbell JA, Lamar WW. 2004. The Venomous Reptiles of the Western Hemisphere. Comstock Publishing Associates, Ithaca and London. 870 pp. 1500 plates. ISBN 0-8014-4141-2.
  2. Wright AH, Wright AA. 1957. Handbook of Snakes. Comstock Publishing Associates. (7th printing, 1985). 1105 pp. ISBN 0-8014-0463-0.