Osteocephalus aff. planiceps Cope, 1874 [Ca1_Neblina411]

Referred specimen: AMNH A-131254.

Distribution: Only known from base of Cerro de la Neblina (Base Camp, Rio Baria, Amazonas state) at southern border of Venezuela. Probably more extensive through southern Venezuela and northern Brazil.

Remarks: There is only a single report of this species in the country by Jungfer et al. (2013), based on specimen AMNH A-131254. In the phylogeny of Osteocephalus inferred by these authors, the species is recovered as sister to a clade integrated by O. leoniae, O. fuscifacies, and O. deridens, and not clustered with any terminal of O. planiceps . Based on this phylogenetic evidence, they refer it as a confirmed candidate species [Ca1_Neblina411] related to Osteocephalus planiceps . In the Osteocephalus planiceps species group (Jungfer et al. 2013). Description of this new species is pending. Other specimens collected during the 1983–1987 expedition to Neblina and deposited in AMNH, USNM and MBUCV as O. taurinus (McDiarmid and Paolillo 1988) probably correspond to this new taxon.

References: McDiarmid and Paolillo 1988; Jungfer et al. 2013.