Two new species of the Rhinella margaritifera species group (Anura: Bufonidae) from the Eastern Guiana Shield
- 1Programa de Pós-Graduação em Sistemática, Uso e Conservação da Biodiversidade, Núcleo Regional de Ofiologia, Centro de Ciências, Universidade Federal do Ceará, 60455-760, Fortaleza, CE, Brazil
- 255 Résidence de la Plage, 97300, Cayenne, French Guiana
- 3Centre de Recherche sur la Biodiversité et l’Environnement, UMR 5300, CNRS, IRD, Université de Toulouse, Bâtiment 4R1 118 Route de Narbonne, 31062 cedex 9, Toulouse, France
Abstract
We herein describe two new species of the Rhinella margaritifera group from the eastern Guiana Shield. These two species have low cephalic crests, no vertebral apophyses or bony protrusion at jaw angles and were consistently recovered as candidate species in recent integrative studies combining morphological, acoustic and molecular data. The first species, Rhinella guianensis sp. nov., is related to R. proboscidea, R. castaneotica and R. teotoniensis and is characterized by a rounded snout in dorsal view, acute in lateral view and the absence of cranial crests, except for a low supratympanic crest. The second species, Rhinella latebrosa sp. nov., is related to R. unapensis and is characterized by a truncate snout in dorsal view, acute in lateral view, and the presence of small cranial crests. Both species are known to occur in French Guiana and the state of Amapá in Brazil, where they co-occur with Rhinella lescurei and the Rhinella margaritifera/dapsilis/martyi complex. The description of these two new species brings the number of currently recognized nominal species in the R. margaritifera group to 25. However, many species remain to be described in this clade and some boundaries need to be clarified using genomics, as well as the taxonomic status of modern populations using museomics.
Related
- Song Patterns and Stridulatory Movements in Conocephalus Species (Orthoptera: Tettigonioidea: Conocephalidae) of the Eastern Hemisphere: A Review with Some New Data
- The role of parkland agroforestry tree species for soil physicochemical properties and crop productivity in Hirna and Kersa, Eastern Ethiopia
- Mazus zhewanensis (Mazaceae): A new species from Eastern China
- A new species of Diploderma (Reptilia, Squamata, Agamidae) from eastern Xizang, China
- A field observation method to characterize site soundscape and improve detection probability estimation for eastern bat species in North America
BibTeX
@article{avila2026species,
title = {{Two new species of the Rhinella margaritifera species group (Anura: Bufonidae) from the Eastern Guiana Shield}},
author = {Robson Waldemar Avila and Antônio Rafael Lima Ramos and Maël Dewynter and Antoine Fouquet},
journal = {European Journal of Taxonomy},
year = {2026},
month = nov,
doi = {10.5852/ejt.2026.1118.3353},
url = {https://doi.org/10.5852/ejt.2026.1118.3353},
note = {CC BY},
}
RIS
TY - JOUR
TI - Two new species of the Rhinella margaritifera species group (Anura: Bufonidae) from the Eastern Guiana Shield
AU - Robson Waldemar Avila
AU - Antônio Rafael Lima Ramos
AU - Maël Dewynter
AU - Antoine Fouquet
PY - 2026
DA - 2026/11/06
JO - European Journal of Taxonomy
DO - 10.5852/ejt.2026.1118.3353
UR - https://doi.org/10.5852/ejt.2026.1118.3353
AB - We herein describe two new species of the Rhinella margaritifera group from the eastern Guiana Shield. These two species have low cephalic crests, no vertebral apophyses or bony protrusion at jaw angles and were consistently recovered as candidate species in recent integrative studies combining morphological, acoustic and molecular data. The first species, Rhinella guianensis sp. nov., is related to R. proboscidea, R. castaneotica and R. teotoniensis and is characterized by a rounded snout in dorsal view, acute in lateral view and the absence of cranial crests, except for a low supratympanic crest. The second species, Rhinella latebrosa sp. nov., is related to R. unapensis and is characterized by a truncate snout in dorsal view, acute in lateral view, and the presence of small cranial crests. Both species are known to occur in French Guiana and the state of Amapá in Brazil, where they co-occur with Rhinella lescurei and the Rhinella margaritifera/dapsilis/martyi complex. The description of these two new species brings the number of currently recognized nominal species in the R. margaritifera group to 25. However, many species remain to be described in this clade and some boundaries need to be clarified using genomics, as well as the taxonomic status of modern populations using museomics.
SN - 2118-9773
ER -