Hylarana parva ( Griesbaum, Jongsma, Penner, Kouamé, Doumbia, Gonwouo, Hillers, Glos, Blackburn & Rödel, 2023)

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 : 660

Hylarana parva ( Griesbaum, Jongsma, Penner, Kouamé, Doumbia, Gonwouo, Hillers, Glos, Blackburn & Rödel, 2023)

( Fig. 13E )

MATERIAL EXAMINED. — Togo • 1 ♂; Danyi Atigba ; MNHN-RA-1979.6838 • 1 ♂; Kovié ; MNHN-RA-1979.6832 • 4 ♂, 9 ♀; Tové ; MNHN-RA-1979.6824-6831, MNHN-RA-1979.6833-6836, MNHN-RA-1989.6841 • 2♀; Kloto ;MNHN-RA-1993.1491,MNHN-RA-1993.1492 • 4 ♀; Kpele Beme ; MNHN-RA-2006.2165-2168 • 1 ♀; Yégué; Coll . GHS-W 0683 • 1 juvenile; Kovié; MNHN-RA-1979.6840 • 1 juvenile; Yégué; Coll . GHS-W 0691 .

DESCRIPTION. — Large frog (SVL 48-59 mm ♂, 65-78 mm ♀), with elongate but robust body. Snout rounded, ogival. Head longer than broad (HW 30-34% SVL; HL 35-41% SVL). Tympanum distinct (TYD 8-12% SVL). Hind legs moderately long (TL 48- 57% SVL). Webbing moderate leaving up to three phalanges free; webbing formula: I 1 – 2 II ½ – 2 ½ III ½ – 2 ½ IV 2 – ½ V. Back with two dorsal-lateral folds starting from the palpebral region and ending in the inguinal region; skin of the back finely granular; some glandular warts on the flanks; breast and belly smooth.

COLOURATION. — The dorsal colouration is olive green in life and becomes grayish in alcohol. The flanks have darker bands. In some specimens, the lateroventral part has irregularly shaped whitish and dark spots. In others, the body is uniformly olive green. The upper lip is underlined by a white band. The ventral side is white.

SEXUAL DIMORPHISM. — The male is distinguished from the female by a pair of vocal bags opening on each side of the throat, and the presence of humeral glands.

HABITATS AND DISTRIBUTION. — This species is occurring in rainforest and forest patches in humid savannah, usually associated to flowing water. In Togo is mainly occurs in the ecological zone IV. It is frequent in the Adélé region, on the Akposso-Akébou and Danyi plateaus and on the Kouma-Konda Mountains and in Tové. The presence of the species in Togo has been reported by Bourgat (1979), Kulo (1980: 35), BringsØe (1995), Segniagbeto et al. (2007) and Hillers et al. (2009) under the name Amnirana albolabris . Jongsma et al. (2018) however showed that West African populations are not conspecific with Hylarana albolabris from Central Africa. The West African species has recently been described by Griesbaum et al. (2023). We here formally transfer it to the genus Hylarana as phylogenetic relationships within this genus are not resolved (Dubois al. 2021).

Figures

FIG. 13. — Representatives of anuran species from Togo in life: A, Ptychadena pumilio (Boulenger, 1920) (Mango); B, Ptychadena tellinii (Peracca, 1904) (Koui); C, Aubria subsigillata (Duméril,1856) (Kovié);D, Hylarana galamensis (Duméril & Bibron,1841) (Avévé);E, Hylarana parva (Griesbaum, Jongsma, Penner,Kouamé, Doumbia, Gonwouo, Hillers, Glos, Blackburn & RÖdel, 2023) (Diguengue); F, Geotrypetes seraphini (Duméril, 1859) (Agou).