Wednesday, August 4, 2021

[Herpetology • 2021] Rhinella moralesi • A New Species of Toad (Anura: Bufonidae: Rhinella) from Northern Peru

Rhinella moralesi
Lehr, Cusi, Rodrigues, Venegas, García-Ayachi and Catenazzi, 2021

We describe a new species of Rhinella from montane forests between 1788 and 2305 m a.s.l. in the Departamentos Amazonas and San Martín, Peru. We tentatively assign the new species to the Rhinella festae species Group based on morphological similarities with its other 19 members. It is characterised by large size (maximum SVL 91.6 mm in females), a pointed and protruding snout that is posteroventrally inclined, absence of a visible tympanic annulus and tympanic membrane, long parotoid glands in contact with upper eyelid, presence of a dorsolateral row of enlarged tubercles, outer dorsolateral tarsus surface with a subconical ridge of fused tubercles, and absence of subgular vocal sac and vocal slits in males. One specimen from Departamento Amazonas tested positive for Batrachochytrium dendrobatidis.

Keywords: amphibia; Rhinella festae species Group; earless; cloud forest; Departamento Amazonas; Departamento San Martín; Río Abiseo National Park; chytrid fungus

Figure 3. Life specimens in dorsolateral views of
(A) Rhinella moralesi sp. nov. (holotype, MUSM 15959, SVL 67.6 mm, male),
(B) R. chavin (MUSM 20027, SVL 64.9, female)
(C) R. yanachaga (MUSM 31100, juvenile), and
(D) R. multiverrucosa (MTD 44749, SVL 68.9 mm, female).
Photos by A. Catenazzi, (A) E. Lehr (B,C), and M. Lundberg (D).


Figure 6. Adult females and juveniles of Rhinella moralesi sp. nov.
Female (CORBIDI 20372, SVL 91.6 mm) in dorsal (A) and ventral (B) views,
female (CORBIDI 713, SVL 90.6 mm) in dorsal (E) and ventral (F) views.
Juvenile (CORBIDI 20301, SVL 26.9 mm) in lateral (C) and ventral (D) views, and
juvenile (CORBIDI 18862, SVL 41.3 mm) in lateral (G) and ventral (H) views.
Photos by P.J. Venegas (E–H) and L.A. García-Ayachi (A–D).


Family Bufonidae Gray, 1825

Genus Rhinella Fitzinger, 1826

Rhinella moralesi sp. nov. 
Lehr, Cusi, Rodrigues, Venegas, García-Ayachi and Catenazzi, 2021

Etymology: We dedicate the new species to our late colleague and friend Professor Victor Morales in recognition of his contributions to Neotropical herpetology.

 Edgar Lehr, Juan C. Cusi, Lily O. Rodriguez, Pablo J. Venegas, Luis A. García-Ayachi and Alessandro Catenazzi. 2021. A New Species of Toad (Anura: Bufonidae: Rhinella) from Northern Peru. Taxonomy. 1(3); 210-225. DOI: 10.3390/taxonomy1030015