Lacunolabial scale
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The lacunolabial scale is a large scale that forms in some crotaline snakes (pitvipers) when the prelacunal scale fuses with the second (rarely the third) supralabial scale.[1][2] In such cases, it is often said that "the second labial enters the pit".[3] Some pitvipers, such as Bothrops alternatus, Bothrops erythromelas, Bothrops itapetiningae and Bothrops neuwiedi, have a divided lacunolabial scale.[4]
References
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- ↑ Campbell JA, Lamar WW. 2004. The Venomous Reptiles of the Western Hemisphere. 2 volumes. Comstock Publishing Associates, Ithaca and London. 870 pp. 1500 plates. Template:ISBN.
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