Abstract
ABSTRACT Many aspects of the Amazonian amphibian fauna are yet understudied. This is the case of the Amapá treefrog, Boana dentei, which was described in the 1960s based on a single female specimen from Serra do Navio, a Brazilian region of lowland Amazonian forests in the easternmost portion of the Guiana Shield. The species has been reported only a few times since its description, and phenotypic data from its type locality still remain unknown. We redescribe this treefrog species, including the first characterisation of the male, life colours, tadpole, vocalisation, and notes on habitat, based on a newly collected series from the type locality. Boana dentei is sexually dimorphic with respect to external morphology and colour patterns. Males are distinguished from females by a smaller snout–vent length, lighter dorsal colouration, bright yellow colour in ventral hindlimbs and palm of hand, and enlarged prepollex. Boana dentei is distinguished from other members of the B. albopunctata group by the snout truncate from above and rounded to vertical in profile, calcar absent on heel, black vertical bars on thigh, and vocal repertoire composed of three types of pulsed notes.
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