Hyperolius sylvaticus 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 : 648-649

Hyperolius sylvaticus SchiØtz, 1967

( Fig. 10C )

MATERIALS EXAMINED. — Togo • 1 ♂; Yégué ; MNHN-RA-2008.0129 • 2 ♂; Diguengué; Coll . GHS-W-1632, Coll . GHS-W 1657 • 1 ♀; Kovié ; MNHN-RA-1993.6093 .

ADDITIONAL MATERIALS. — Liberia • 4 ♂; Nimba, MNHN-RA-1998.1392-1395 .

Côte d’Ivoire • 2 ♀; Lamto, MNHN-RA-1993.3720, MNHN-RA-1993.7693 • 1 ♂, 1 ♀, paratypes of Hyperolius sylvaticus ivorensis SchiØtz, 1967 ; 35 km north of Abidjan; MNHN-RA-1993.3722, MNHN-RA-1993.3723 • 4 ♂, paratypes of Hyperolius sylvaticus ivorensis SchiØtz, 1967 ; Ndenou ; MNHN-RA-1993.3724-3727 .

Ghana • 1 ♂, paratype of Hyperolius sylvaticus sylvaticus SchiØtz, 1967 ; Bobiri; MNHN-RA-1993.3729 .

Nigeria • 2 ♂, paratypes of Hyperolius sylvaticus nigeriensis SchiØtz, 1967 ; 6 miles north of University of Ibadan ; MNHN-RA-1993.3729 .

DESCRIPTION. — Slender-bodied tree frog (SVL 22.5-23.7 mm ♂, 28-30 mm ♀), with pointed snout. Head slightly longer than broad (HW 30-36% SVL; HL 34-37% SVL). Tympanum poorly distinct (TYD 3-5% SVL). Tibia moderately long (TL 46-50% SVL). Webbing large; webbing formula: I 1 – 1 ½ II ½ –1 ½ III ½ – 1 ½ IV 1 ½ – ½ V. Toes and fingers terminated by discs. Skin uniformly smooth over entire back and flanks; belly and chest granular.

COLOURATION. — The dorsal colouration is characterised by a dark mid-dorsal band that includes the inter-orbital band and a sacral spot; in other individuals three large, transversely orientated spots, an inter-orbital, a shoulder and a sacral spot, form the dorsal pattern. The ventral side is white.

SEXUAL DIMORPHISM. — The male has a subgular vocal sac with a gland.

HABITATS AND DISTRIBUTION. — The small number of specimens collected makes it difficult to estimate the species range in Togo. The specimen MNHN-RA-2008.0129 was captured in the gallery forest along the Yégué River in Adélé ( Hillers et al. 2009). SchiØtz (1999) indicated that it is mainly a forest species. The distribution localities mentioned in the Volta region between Togo and Ghana ( Rödel & Agyei 2003) confirm the range of this species.

TAXONOMY NOTE. — See comment under Hyperolius laticeps .

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).