Matses Reserve Tree Toad

description

Description of the holotype. Body robust; head triangular, as long as wide; head length 33.4 % of SVL; head width 28.8 % of SVL. Snout truncate in dorsal view, with a triangular nasal protrusion with edges dilated in ventral view; snout pointed in lateral view; snout length 48.8 % of head length; tympanum and vocal sac indistinct; circular eyes, diameter about 24.4 % of head length; nostril closer to the tip of snout than to eyes. Dorsal skin texture spiculate and covered by several scattered small granules; few spine granules on the upper arm; ventral surfaces covered by granular tubercles larger than that of dorsum; forelimbs slender, length of upper arm 29.6 % of SVL; edges of lower arms and upper arms covered by few small spines; fingers slender, relative length of fingers I <II <IV <III; palmar tubercle elliptical; supernumerary tubercles rounded: two on fingers I and II and three on fingers III and IV; fingers free, unwebbed, and finger tips expanded. Hind limbs slender, larger than forelimbs; small triangular spicules from thigh to tarsus; foot length 89.8 % of thigh length; relative size of toes: I <II <III <V <IV; outer and inner metatarsal tubercles rounded; subarticular

Two new species of Amazophrynella (Amphibia: Anura: Bufonidae) from Loreto, Peru

diagnosis

Diagnosis. Amazophrynella matses sp. nov. is assigned to the genus Amazophrynella by the combination of the following synapomorphies (sensu Fouquet et al. 2012 b): small size with maximum SVL of 26.5 mm, elongated snout and slender body, eyelids smaller than eye diameter, cranial crests not evident, parotid glands and external tympanum not visible, texture of the skin granular or finely granular, ventrum with pattern of blotches or spots. The new species is readily diagnosed by the combination of the following characters: 1) smallest size of the genus: females 17.1 ± 0.7 mm (16.5 – 17.7 mm), males 12 ± 0.6 mm (11.5 – 13.5 mm); 2) canthus rostralis straight in dorsal view; 3) snout slightly truncate, with edges of nasal protrusion dilated in ventral view; 4) palmar tubercles elliptical; 5) finger tips expanded, 6) presence of medium-sized black ocelli and / or streaks covering venter; 7) belly yellow with undefined blotches; and 8) ten diagnostic characters in the 16 S rDNA gene fragment (Figure 1, Table 5). Comparisons with other species. Amazophrynella matses sp. nov. can be distinguished from the other species of Amazophrynella by the following characters (characters of compared

Two new species of Amazophrynella (Amphibia: Anura: Bufonidae) from Loreto, Peru

distribution

Distribution and natural history. Amazophrynella matses sp. nov. was found at four localities on the right bank of the Ucayali River in the state of Loreto, southeastern Peru: Requena, around Jenaro Herrera community, Nuevo Salvador and the Matses Indian Reserve. Amazophrynella matses sp. nov. can be found in upland (= terra firme) forests away from rivers, within root mass of bushes or in leaf litter. Reproduction is coincident with the rainy season, where oviposition occurs in puddles with abundant herbaceous and shrubby vegetation.

Two new species of Amazophrynella (Amphibia: Anura: Bufonidae) from Loreto, Peru

etymology

Etymology. The specific epithet matses, a substantive from a polysynthetic language, is a reference to the Matsés ethnic group, which inhabits the region where we found the new species.

Two new species of Amazophrynella (Amphibia: Anura: Bufonidae) from Loreto, Peru