Osteocephalus aff. taurinus [Ca3_AJC2959_3181]
Referred specimens: MHNLS 18325, 19907, 20034, and 20083.
Distribution: Only known from northwestern Amazonas state, southern Venezuela.
Remarks: In the phylogeny of Osteocephalus inferred by Jungfer et al. (2013) this taxon is recovered as sister to a clade integrated by O. oophagus, O. taurinus, and two other undescribed species, and is not clustered with any terminal of O. taurinus sensu stricto . Jungfer et al. (2013) refer it as a confirmed candidate species [Ca3_AJC2959_3181] related to O. taurinus . In the Osteocephalus taurinus species group (Jungfer et al. 2013). Description of this new species is pending. Numerous specimens deposited in MHNLS, EBRG, and MBUCV as O. taurinus (McDiarmid and Paolillo 1988) probably correspond to this new taxon. The identity of populations in Bolívar and Delta Amacuro previously referred as O taurinus (Barrio-Amorós 1998; Gorzula and Señaris 1999; Señaris and Ayarzagüena 2004) must be reevaluated.
References: Jungfer et al. 2013.