Bothrops Wagler, 1824

Luna, Igor Veronese de, Ugalde, Miguel Relvas, Guimarães, Mariana Rocha Santos, Hoffmann, Kauann, Citeli, Nathalie, Kiefer, Mara Cintia & Hamdan, Breno, 2025, Fig. 3 in Positive association between PTN polymorphisms and schizophrenia in Northeast Chinese Han population., Zoological Studies 64 (20), pp. 141-149 : 9-10

Bothrops Wagler, 1824

1. Dorsum not green ....................................................................... 2

- Dorsum green ................................................ Bothrops bilineatus

2. Prelacunal and second supralabial separate ............................... 3

- Prelacunal in contact with second supralabial forming the lacunolabial ................................................................................ 5

3. Postorbital stripe hook-shaped posteriorly; top of the head with spear-shaped marking ...................................... Bothrops fonsecai

- Postorbital stripe not hook-shaped posteriorly; top of the head not spear-shaped marked .................................................................. 4

4. Ornate head pattern consisting of a large dark brown blotch on snout and pair of elongated blotches extending from frontal region to behind angle of jaw ....................... Bothrops alternatus

- Top of head not as above ................................ Bothrops neuwiedi

5. 166–182 ventral scales in males and 170–186 in females; more than five scales reaching the internasal scales; top of the head generally uniform dark brown; labial colour generally uniform; small circles on the basal part of the lateral triangles; triangle blotches with a lighter border around them connecting with the surrounding borders .................................... Bothrops jararacussu

- 184–219 ventral scales in males and 184–220 in females; four or fewer scales reaching the internasal scales; head generally stained dorsally with diffuse dark markings; labial colour generally stained; only well-designed triangle blotches; triangle blotches with a lighter border not contacting other triangle blotches .......... .......................................................................... Bothrops jararaca