Hyperolius torrentis SchiØtz, 1967

Segniagbeto, Gabriel Hoinsoudé, Ohler, Annemarie, Rödel, Mark-Oliver, Luiselli, Luca & Dubois, Alain, 2024, Amphibians of Togo: taxonomy, distribution and conservation status, Zoosystema 46 (25), pp. 631-670 : 649

Hyperolius torrentis SchiØtz, 1967

( Fig. 10A, B )

MATERIAL EXAMINED. — Togo • 4 ♂; Akloa ; MNHN-RA-2008.0116, ZMB 77905 -77907 • 1 ♂; Kouma Tokpli; Coll . GHS-W 0805 • 2 ♂; Missahohé; MNHN-RA-2008.0117; Coll . GHS-W 0827 • 1 ♂; Yégué ; Coll. GHS-W 1149 • 2 ♂; Diguengué ; ZMB 77908, ZMB 77909 • 2 ♂; Kalaré (Fazao National Park); Coll. GHS-W 1917, Coll. GHS-W 1918 .

DESCRIPTION. — Fairly robust, but elongate frog (SVL 33-35 mm ♂, 41 mm ♀) ( SchiØtz 1967). Snout rounded or oval. Head longer than broad (HW 33-34% SVL; HL 34-36% SVL). Tympanum distinct (TYD 4-5% SVL).Tibia moderately long (TL 48-50% SVL). Webbing large; webbing formula: I 1 – 1 II 0 – 1 III 0 – 1 IV 1 – 0 V. Toes and fingers terminated by disks. Skin uniformly smooth over the entire dorsal part and on the flanks; belly and chest granular.

COLOURATION. — The dorsal colouration is yellow to green in life, gray or brownish in alcohol. The flanks are yellow often with brown band or spots. The canthus rostralis is marked by a light-yellow line. The hidden parts of shanks, tips of fingers and toes and web are reddish. The ventral side is yellowish.

SEXUAL DIMORPHISM. — Males have a subgular vocal sac with a gland.

HABITATS AND DISTRIBUTION. — This species is found around waterfalls areas in gallery forests of varying density, in montane areas. It becomes active only at very late hours during the night, later than other syntopic frog species. The holotype (ZMUC R074376) described by SchiØtz (1967: 218) originated from the forest area of Togo. This species has long been considered endemic to this area ( SchiØtz 1967; Rödel & Agyei 2003; Leaché et al. 2006), but a paper by Nago et al. (2006) showed its presence in cascades of a forest at Kota, northern Benin. It is likely to have a wider distribution across the Atacora chain.

Figures

FIG. 10. — Representatives of anuran species from Togo in life: A, B, Hyperolius torrentis Schiøtz, 1967: A, (Kalaré); B, (Diguengué); C, Hyperolius sylvaticus Schiøtz, 1967 (Diguengué);D, Kassina fusca Schiøtz, 1967 (Bounako); E, Kassina schioetzi RÖdel, Grafe, Rudolf & Ernst, 2002 (Tsévié); F, Kassina senegalensis (Duméril & Bibron, 1841) (Tsévié).