The British Herpetological Society

The Herpetological Journal is the Society's prestigious quarterly scientific journal. Articles are listed in Biological Abstracts, Current Awareness in Biological Sciences,Current Contents, Science Citation Index, and Zoological Record.

The 2017/18  impact factor of the Herpetological Journal is 1.268

  pdfBHS Ethics Policy

Download Access:

  • The latest 20 issues can be downloaded when logged in with a Herpetological Journal subscription membership.
  • Individual articles can be purchased for download.
  • Older issues and occasional Open Access articles are available for public download

pdf 07. Significant but not diagnostic: Differentiation through morphology and calls in the Amazonian frogs Allobates nidicola and A. masniger


Open Access

pp. 105-114
Authors: Tsuji-Nishikido, Bruno M.; Kaefer, Igor L.; de Freitas, Francisco C.; Menin, Marcelo & Lima, Albertina P.

Abstract: Acoustic parameters often usefully supplement the classic morphological approaches used to discriminate between similar species of frogs, and thus provide better assessments about their taxonomy at the species level. Allobates nidicola and A. masniger are known only from their respective type localities in Brazilian Amazonia, and the two species share all the available qualitative diagnostic traits. This study describes and compares a set of quantitative morphometric (external measurements) and acoustic (temporal and spectral parameters) characters of these species in a sampling design that included their type localities, in order to assess whether they are phenotypically distinguishable. The advertisement call of A. masniger is described here for the first time. Both acoustic (including temporal and spectral properties) and morphometric characters overlapped with those found in A. nidicola. The two species differed statistically in acoustic and morphometric characters when we compared between individuals from their type localities, and also when assuming that they are allopatric by the transposition of the Madeira River, the main biogeographic barrier in the study area. However, multivariate analyses failed to prove unambiguous distributional boundaries of these species based on the analysed phenotypic traits. Therefore, further lines of evidence - such as behavioural, developmental and molecular data - are required in order to detect diagnostic characters and thus clarify the taxonomic status of these phenotypically similar species.



For further information and submission guidelines please see our Journal Instructions to Authors



NOTE: as of January 2017, all new editions of the HJ are ONLY available online via the BHS website. The BHS no longer has a commercial hosting agreement with Ingenta  -  although editions prior to end 2016 remain accessible on Ingenta .  Those editions are of course also accessible on the BHS website for subscribers with an active and valid membership.  Should you experience any difficulty accessing HJ editions via the website or have any queries in this regard, please contact