- Two new species of frogs of the genus Pristimantis from Llanganates National Park in Ecuador with comments on the regional diversity of Ecuadorian Pristimantis (Anura, Craugastoridae)
- Published in
- Navarrete, Maria J., Venegas, Pablo J., Ron, Santiago R. (2016): Two new species of frogs of the genus Pristimantis from Llanganates National Park in Ecuador with comments on the regional diversity of Ecuadorian Pristimantis (Anura, Craugastoridae). ZooKeys 593: 139-162, DOI: http://dx.doi.org/10.3897/zookeys.593.8063, URL: http://dx.doi.org/10.3897/zookeys.593.8063
- Pristimantis llanganati
Diagnosis. The new species is assigned to the genus Pristimantis. Although morphological synapomorphies are unknown for Pristimantis, the new species has the characteristic morphology of most Pristimantis including T-shaped terminal phalanges, toes without membranes, and Toe V longer than Toe III. Pristimantis llanganati is characterized by the following combination of characters: (1) Skin on dorsum covered by minute conical tubercles, skin on venter areolate with scattered warts; discoidal fold absent; dorsolateral folds absent; (2) tympanic membrane and tympanic annulus present, covered by supratympanic fold on its upper and posterior margins; (3) snout short, rounded in dorsal and lateral view; (4) upper eyelid with a low conical tubercle and some low indistinct tubercles posteriorly; EW 82 % of IOD; cranial crests absent; (5) dentigerous processes of vomers varying from low and indistinct to high and evident, oblique, moderately separated, posteromedial to choanae; (6) vocals slits present, nuptial pads absent; (7) Finger I shorter than Finger II; discs of digits broadly expanded, truncate; (8) fingers bearing narrow lateral fringes; (9) ulnar and tarsal tubercles present, conical and low; (10) heel with two or three low conical tubercles; inner tarsal fold present, long and ill defined; (11) inner metatarsal tubercle elliptical, low, 2 X as large as outer metatarsal tubercle; outer metatarsal tubercle small, ovoid; supernumerary plantar tubercles low and indistinct; (12) toes bearing narrow lateral fringes; toe webbing absent; Toe V longer than Toe III (disc on Toe III reaches the proximal edge to the proximal subarticular tubercle on Toe IV, disc on Toe V extends to the proximal edge of distal subarticular tubercle on Toe IV); toe discs about as large as those on fingers; (13) in life, dorsum olive green with X-shaped or rhomboidal dark brown mark on scapular region, and scattered brown flecks or blotches; flanks, dorsal and posterior surfaces of thighs and ventral surfaces of shanks dirty white or white with dark brown diagonal stripes; groins white or tan with distinct black or dark brown diagonal stripes; venter dirty cream with brown mottling in the throat and chest and brown flecks in belly and ventral surfaces of thighs. Iris coppery with a reddish horizontal stripe; (14) SVL in one adult female 29.8 mm, in adult males 24.0 - 27.0 mm (n = 2).
Etymology. The species name llanganati is a noun that refers to the kichwa word " Llanganati " that means " beautiful hill ". This word also gives name to Llanganates National Park, the area where the species was discovered. Many areas in the park are difficult to access and are biologically unexplored. This inaccessibility has protected large areas of its paramos and montane forests, a valuable asset for the conservation and Andean biodiversity.
Holotype QCAZ 46140 (field no. SC-PUCE 29720; Figs 2 C-D, 6 A-B), adult male from Ecuador, Provincia Napo, Canton Tena, " La Cueva " at the confluence of the Mulatos and Langoa rivers (0.9663 ° S, 78.2224 ° W), 2483 m above the sea, collected by Elicio E. Tapia and Fernando Nunez on 15 November 2009. Figure 6. Preserved holotype of Pristimantis llanganati sp. n., QCAZ 46140, adult male, SVL = 27.1 mm. Dorsal (A), ventral (B).
Paratopotypes (3 specimens). QCAZ 46221 adult female, 46141 and 46142 juveniles, collected with the holotype.
Paratypes (2 specimens). Ecuador, Provincia Napo, QCAZ 46227 adult male, Salcedo-Tena road (0.9847 ° S, 78.1928 ° W), 2253 m, collected by Elicio E. Tapia and Fernando Nunez on 16 November 2009; QCAZ 46217, juvenile, Salcedo-Tena road (0.9670 ° S, 78.2484 ° W), 2883 m, collected by Elicio E. Tapia and Fernando Nunez on 14 November 2009
- Pristimantis llanganati