Ptychadena oxyrhynchus (Smith, 1849)

Ayoro, Halamoussa Joëlle, Segniagbeto, Gabriel Hoinsoudé, Hema, Emmanuel Midibahaye, Penner, Johannes, Oueda, Adama, Dubois, Alain, Rödel, Mark-Oliver, Kabré, Gustave Boureima & Ohler, Annemarie, 2020, List of amphibian species (Vertebrata, Tetrapoda) of Burkina Faso, Zoosystema 42 (28), pp. 547-582 : 568

Ptychadena oxyrhynchus (Smith, 1849)

COLLECTION MATERIAL. — Burkina Faso • 2 ♀ ( SVL 52-57 mm); Léraba province , near Katiaré (north-east Ferké); 9.91200°N, – 4.94771°W; 250 m a.s.l.; 10.XI.1970; M. Lamotte leg.; MNHN-RA-1996.3873, 1996.3874 • 2♀ ( SVL 48.5-64.2 mm), 1 ♂ ( SVL 55.2 mm); Bobo-Dioulasso ; 11.18801°N, – 4.29743°W; 280 m a.s.l.; 6.XI.1970; M. Lamotte leg.;MNHN-RA-1996.3869, 1996.3870, 1996.3871 .

FIELD MATERIAL. — Burkina Faso • 1 ♂ ( SVL 47.8 mm), 1 ♀ ( SVL 62.3 mm); Tuy province , Fafo dam; 11.33470°N, – 3.01947°W; 300 m a.s.l.; 8.XI.2018; H. J. Ayoro leg.; in a vegetable garden; hand capture .

LITERATURE REPORTS. — Burkina Faso • Gourma province , Fada N’gourma; 12.06051°N, 0.34913°E; 300 m a.s.l.; (Mohneke 2011; Mohneke et al. 2011) • Ganzourgou province , Mogtedo; 12.31844°N, – 0.83601°W; 280 m a.s.l. (Mohneke 2011; Mohneke et al. 2011) • Zorgho ; 12.2483°N, – 0.6278°W; 300 m a.s.l.; I-III.2008 (Mohneke 2011; Mohneke et al. 2011) .

DESCRIPTION. — 7 specimens studied. Five females 48.5-64.2 mm; SVL of two males 47.8-55.2 mm SVL, close to e.g. those given by Konan et al. (2016), male size as 46.0- 60.9 mm and females size as 58.0- 65.1 mm; and by Rödel (2000), males 40-53 mm, females 51-64 mm. Snout very pointed and hind legs very long. Webbing formula: I 0 - ½ II 0 - 1 III 0 - 1 IV 1 - 0 V. On the back presence of four pairs of longitudinal ridges; a pair of short ridges and white lateral ridges on the flanks. Dominant dorsal colour a greyish to brown.

HABITAT. — During the dry season, the species can be found under stones on river banks, whereas they breed in savannah ponds during the rainy season ( Rödel 2000). This frog occurs in open landscapes, savannah-forest ecotone and the degraded part of rainforest ( Hughes 1988; Konan et al. 2016; Onadeko 2016). Some authors also list more arid habitats ( Amiet 1974). It is widely distributed in West Africa and in a large part of sub-Saharan Africa from Senegal to South Africa ( Rödel 2000; Channing 2001; Channing & Howell 2006).