Porthidium volcanicum

Porthidium volcanicum, the Ujarran hognosed pitviper, is a venomous pitviper species endemic to Costa Rica. No subspecies are currently recognized.

Description
Adults of P. volcanicum are moderately stout, with females growing to 31 - 53.6 cm in total length (including tail). The only male ever collected was 25.9 cm long.

Geographic range
Porthidium volcanicum is known only from the type locality, which is given as "Ujarrás de Buenos Aires (Valle del General, suoeste de la provincia de Puntarenas, Costa Rica)", Volcán de Buenos Aires and Valle del General in Puntarenas Province, Costa Rica.

Habitat
Porthidium volcanicum occurs in tropical moist forest. The region receives 3,500 mm of rainfall annually and has a dry season January–April.