Aromobatidae Grant, Frost, Caldwell, Gagliardo, Haddad, Kok, Mittel, Noonan, Schargel & Wheeler, 2006

Taucce, Pedro P. G., Costa-Campos, Carlos Eduardo, Carvalho, Thiago R. & Michalski, Fernanda, 2022, Anurans (Amphibia: Anura) of the Brazilian state of Amapá, eastern Amazonia: species diversity and knowledge gaps, European Journal of Taxonomy 836, pp. 96-130 : 100-101

Family Aromobatidae Grant, Frost, Caldwell, Gagliardo, Haddad, Kok, Mittel, Noonan, Schargel & Wheeler, 2006

Anomaloglossus baeobatrachus (Boistel & Massary, 1999) is found throughout French Guiana and the state of Amapá, and may be a species complex ( Fouquet et al. 2019 a, 2019b). The specimens from Amapá are recovered in a different clade in comparison with the clade formed by specimens from the type locality (Saint Eugène, French Guiana). Moreover, what is called An. baeobatrachus in the literature has two markedly different phenotypes, one with endotrophic (as observed from topotypes) and the other one with exotrophic tadpoles, morphologically indistinguishable from each other ( Fouquet et al. 2019 a, 2019b). The populations with exotrophic tadpoles have signs of past hybridization and more investigation is necessary to clarify their taxonomic status ( Fouquet et al. 2019a). Although both phenotypes occur in Amapá ( Fouquet et al. 2019a), we chose to consider all the records under the name An. baeobatrachus until the situation is clarified.

Two problematic species appeared among the records, namely Anomaloglossus beebei (Noble, 1923) and Allobates marchesianus (Melin, 1941) . Anomaloglossus beebei is an endangered species with a restricted distribution, known only from the Pakaraima region, western Guyana ( Cole et al. 2013; IUCN 2022). There are records of An. beebei from seven localities in central and northeastern Amapá (localities 5, 7–8, 11–12, 14–15; Lima 2006a, 2006b, 2008; Queiroz et al. 2011). Allobates marchesianus is probably a species complex distributed in Colombia, Peru, Venezuela, and the Brazilian state of Amazonas ( Caldwell et al. 2002). There are also records of Al. marchesianus from central and northeastern Amapá, from five localities (6–8, 14–15; Lima 2006a, 2006b, 2008). According to recent thorough molecular surveys ( Fouquet et al. 2019b; Rejaud et al. 2020; Vacher et al. 2020) none of these species occur in the state of Amapá. Besides, we did not have access to any of the vouchers and, due to the complex taxonomic history of the two species (see Caldwell et al. 2002; Kok et al. 2006), we cannot assign these records undoubtedly to a single species and we chose to remove the records from the list. Nonetheless, it is important to note that An. beebei has long been mistaken for Allobates granti Kok, MacCulloch, Gaucher, Poelman, Bourne, Lathrop & Lenglet, 2006 ( Kok et al. 2006) and, although there is no record of Al. granti in Amapá, the species is known to inhabit several localities throughout the western border of French Guiana. Thus, at least some of the records of An. beebei may actually correspond to Al. granti .