FIGURE 5 in A cryptic palm-pitviper species (Squamata: Viperidae: Bothriechis) from the Costa Rican highlands, with notes on the variation within B. nigroviridis

FIGURE 5. Dorsal and lateral views of the head of male paratype UCR 11151 from San Gerardo, Costa Rica. Scale bar = 20 mm. The diagnostic kidney-shaped supraoculars and partial scale rows between the supralabials and suboculars are highlighted.Published as part of Doan, Tiffany M., Mason, Andrew J., Castoe, Todd A., Sasa, Mahmood & Parkinson, Christopher L., 2016, A cryptic palm-pitviper species (Squamata: Viperidae: Bothriechis) from the Costa Rican highlands, with notes on the variation within B. nigroviridis, pp. 271-290 in Zootaxa 4138 (2) on page 280, DOI: 10.11646/zootaxa.4138.2.3, http://zenodo.org/record/25535