This species is only known from a single specimen collected during this study at 1,200 m a.s.l. in forested habitat in Liberian Nimba. It was referred to as Pipistrellus sp. 1 in Monadjem et al. (2013 a). Its cranial characters are very similar to those of P. grandidieri, however the latter species is currently only known from over 2,500 km away in East Africa (Thorn et al., 2007) and therefore the status of this species remains uncertain (also see Decher et al., 2015). For this reason, we refer to it as P. cf. grandidieri until such time as P. grandidieri has been genetically characterized allowing for a phylogenetic comparison. This species had not been previously recorded from Mt Nimba.