Canthal scales: Difference between revisions
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imported>Jaap Winius (Definition according to Campbell & Lamar (2004) and Wright & Wright (1957).) |
imported>James F. Perry (bsd) |
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In snakes, the '''canthals''' are the scales along the upper surface of the [[Canthus (snake)|canthus rostralis]]. They are located behind the level of the [[nasal scales|prenasal/postnasal suture]] and before the [[supraocular]].<ref name="C&L04">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.</ref> Also described as being located along the edge of the crown between the [[internasals]] and the supraoculars.<ref name="W&W57">Wright AH, Wright AA. 1957. Handbook of Snakes. Comstock Publishing Associates. (7th printing, 1985). 1105 pp. ISBN 0-8014-0463-0.</ref> If these are large scales that contact each other along the midline, they are more properly referred to as [[prefrontals]].<ref name="C&L04"/> | In snakes, the '''canthals''' are the scales along the upper surface of the [[Canthus (snake)|canthus rostralis]]. They are located behind the level of the [[nasal scales|prenasal/postnasal suture]] and before the [[supraocular]].<ref name="C&L04">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.</ref> Also described as being located along the edge of the crown between the [[internasals]] and the supraoculars.<ref name="W&W57">Wright AH, Wright AA. 1957. Handbook of Snakes. Comstock Publishing Associates. (7th printing, 1985). 1105 pp. ISBN 0-8014-0463-0.</ref> If these are large scales that contact each other along the midline, they are more properly referred to as [[prefrontals]].<ref name="C&L04"/> | ||
Revision as of 15:11, 17 February 2007
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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] 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
- ↑ 1.0 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.
- ↑ Wright AH, Wright AA. 1957. Handbook of Snakes. Comstock Publishing Associates. (7th printing, 1985). 1105 pp. ISBN 0-8014-0463-0.