Pristimantis albertus Duellman & Hedges, 2007

Moravec, Jiri, Lehr, Edgar & Kodejs, Karel, 2020, A new species of Pristimantis (Amphibia, Anura, Strabomantidae) from the Pui Pui Protected Forest (central Peru), with comments on Pristimantis albertus Duellman & Hedges, 2007, ZooKeys 994, pp. 125-148 : 125

Pristimantis albertus Duellman & Hedges, 2007 Figs 8 , 9 , Table 4

Material.

Five males: MUSM 31953, 31956, 31959; NMP-P6V 75067, 76021 (NMP-P6V 76021 GenBank accession numbers MW075394 (16S rRNA) and MW075415 (12S rRNA)), from the Pui Pui Protected Forest (Rio Huatziroki valley, 11°07'37.2"S, 75°10'37.0"W; Fig. 3 ), 1970 m a.s.l., Distrito Pichanaqui, Provincia Chanchamayo, Región Junín, Peru, collected on 13-16 June 2013 by Edgar Lehr, Jiří Moravec, Juan Carlos Cusi and Rudolf von May. Three females: MUSM 31957; NMP-P6V 75068, 76020 (NMP-P6V 76020 GenBank accession numbers MW075393 (16S rRNA) and MW075414 (12S rRNA), same locality and collecting data as the males.

Diagnostic characters.

In general, the newly-collected and genetically-determined individuals of Pristimantis albertus correspond to the description of the type specimens. However, they differ in the following features: (1) discoidal fold is present, weakly defined (discoidal fold absent, according to Duellman and Hedges 2007); (2) dentigerous processes of vomers are present (absent, according to Duellman and Hedges 2007); (3) groin is orange in both sexes (Figs 8C, D, H , 9D, F ), the orange colouration can continue to posterior parts of flanks and anterior parts of thighs, rarely the orange colouration is present in the axils (MUSM 31959).

Measurements

(Table 4 ). The males are relatively small (SVL 12.9-19.5 mm, n = 5). All lack nuptial pads, but all have vocal slits, a distinct subgular vocal sack and, therefore, are regarded as adults. Females are represented by one adult (NMP-P6V 76020) and two subadult (MUSM 31957, NMP-P6V 75068) specimens. Snout-vent length of the adult female exceeds the size published for the type specimens (24.2 vs. 19.7-20.7 mm in Duellman and Hedges 2007).

Colouration of males in life

(Fig. 9 ). The dorsal colouration resembles the colouration of the adult females. In one individual (MUSM 31956), the light brown colouration of the dorsum is sharply contrasting with the light tan flanks. The throat is brown with cream flecks, the belly is cream with brown mottling and the vocal sack is greenish-yellow.

Distribution and natural history.

Our record of Pristimantis albertus from the PPPF lies ca. 65 km straight SE of the species type locality and represents the first record of this species for the Region Junín (Fig. 3 ).

Figures

Figure 3. Pui Pui Protected Forest (red frame) with collecting sites of Pristimantis sinschi sp. nov. (yellow symbols) and P. albertus and P. sagittulus (blue symbol). Modified after Lehr et al. (2017).

Figure 8. Life colouration of female (A-D, IWU 237, SVL 24.2 mm) and male (E-H, NMP-P 6 V 75067, SVL 15.5 mm) Pristimantis albertus in dorsolateral (A, E), dorsal (B, F), ventral C, G) and lateral (D, H) views. Photos by E. Lehr.

Figure 9. Colouration in life variation of males of Pristimantis albertus A, B (MUSM 31956, SVL 13.7 mm) C, D (IWU 257, SVL 13.4 mm) E, F (MUSM 31959, SVL 12.9 mm). Photos by E. Lehr.