Hyperolius nasutus Günther, 1865

Conradie, Werner, Keates, Chad, Verburgt, Luke, Baptista, Ninda L. & Harvey, James, 2023, Contributions to the herpetofauna of the Angolan Okavango- Cuando-Zambezi river drainages. Part 3: Amphibians, Amphibian & Reptile Conservation (e 325) 17 (1), pp. 19-56 : 33

Hyperolius nasutus Günther, 1865

Large-nosed Reed Frog ( Fig. 15; Map 14)

Material (64 specimens, 1 tadpole lot): PEM A12599–601 , Calua River source, 6 km SE of Cuito River source, -12.73675° 18.39310°, 1,445 m asl ; PEM A12424 , Cunde waterfall, -13.77390° 18.75520°, 1,285 m asl ; PEM A14107 (tadpoles) , PEM A12435 , confluence of Cuito and Calua rivers, -13.12458° 18.20909°, 1,345 m asl ; PEM A12461–3 , INBAC (no number x 4), Cuanavale River source lake, -13.08537° 18.89098°, 1,360 m asl ; PEM A12738–40 , INBAC (no number), Cuando River source, -13.00346° 19.12751°, 1,353 m asl ; PEM A12693 , Cubango River source site, -12.66256° 16.09324°, 1,771 m asl ; PEM A12445 , Cuchi River gorge, -14.5900° 16.90758°, 1,365 m asl ; PEM A12550–1 , Cuito River source lake, -12.68935° 18.36012°, 1,431 m asl ; PEM A12427 , INBAC (no number), Cuiva River bridge on EN250, -11.98345° 17.72367°, 1,267 m asl ; PEM A12490 , Dala River , near Samanunga village, -12.93169° 18.81458°, 1,363 m asl ; PEM A12665 , Cubango River campsite 1 below rapids, west of Fundo village, -13.04790° 16.37896°, 1,568 m asl ; PEM A12805–6 , PEM A13804–12 , Lake Tchanssengwe , -12.41402° 18.64418°, 1,393 m asl ; PEM A14827–8 , INBAC (no number), Luanguinga River waterfall, -13.71132° 21.24914°, 1,118 m asl ; PEM A13773–80 , Lungwebungu River old oxbows, -12.58129° 18.67162°, 1,304 m asl ; PEM A14750–52 , Quembo River right side tributary (Micongo River) past village, -13.51877° 19.28487°, 1,248 m asl ; PEM A12860–62 , INBAC (no number), Quembo River source lake, -13.13624° 19.04591°, 1,366 m asl ; PEM A14729–35 , INBAC (no number x2), Quembo River , oxbow near small waterfall, -13.54257° 19.29551°, 1,233 m asl . Additional material (13 specimens, 8 tadpole lots): SAIAB 209057 (1 specimen), Cuanavale River near confluence, -13.12478° 18.90017°, 1,346 m asl ; SAIAB 204573 (2 specimens), Quembo River source lake, -13.13586° 19.04492°, 1,369 m asl ; SAIAB 209053 (7 tadpoles), outlet River from Kuembo River source lake, -13.13689° 19.03144°, 1,392 m asl ; SAIAB 209173 (3 tadpoles), Quembo River source, -13.13583° 19.04528°, 1,370 m asl ; SAIAB 209051 (5 specimens), Quembo River source lake, -13.14025° 19.04822°, 1,365 m asl ; SAIAB 209045 (6 tadpoles), stream outflow about 2.6 km downstream of source lake, -13.00317° 19.15153°, 1,331 m asl ; SAIAB 209056 (3 specimens) , SAIAB 209087 (1 specimen), small stream 3 km below Cuanavale River source camp, -13.12539° 18.89914°, 1,344 m asl ; SAIAB 209049 (5 tadpoles), south west of Cambuta on main track, -13.44678° 19.96403°, 1,229 m asl ; SAIAB 209055 (1 tadpole), river bridge at Cangamba , -13.69611° 19.87503°, 1,193 m asl ; SAIAB 209050 (1 tadpole), Calua lagoon, -12.73600° 18.39394°, 1,448 m asl ; SAIAB 209026 (1 tadpole), Cuanavale River lake outlet, -13.09414° 18.89612°, 1,357 m asl ; SAIAB 209054 (4 tadpoles), Cuando River source bog, -13.00383° 19.12719°, 1,350 m asl . Description : Small reed frog; rounded snout. Dorsum green, with white dorso-lateral stripes and small scattered black spots; ventrum transparent; pedal webbing formula: I (1), II i/e (1–0.25), III (0.75–0.5), IV (0.75–0.5) , V (0.5). Male throat is white. Adult females (n = 14) varied from 15.9– 20.2 (18.5) mm (largest female: PEM A13810 ); adult males (n = 21) varied from 13.7–20.3 (17.2) mm (largest male: INBAC no number). Habitat and natural history notes: Found on the margins of source lakes, larger rivers, and cut-off oxbows. Comments: Found at certain localities in sympatry with Hyperolius cf. inyangae (see above), but can easily be distinguished based on the rounded snout and larger overall size .