Hyperolius jackie Dehling, 2012, sp. n.

Hyperolius jackie sp. n. Jackie’s Reed Frog (Figures 1 & 2) Holotype: ZMB 77476 (ex JMD 674), adult male, from a natural pond at Karamba (S 2°28'44.28'', E 29°06'44.50'', 1940 m a.s.l.), Nyungwe National Park, Rwanda, collected on 20 March 2011 at 19:25 h by J. M. Dehling. Paratopotypes: ZMB 77477–77480 (ex JMD 671– 673, 675), four adult males, collected on 19 & 20 March 2011; ZMB 77481 (ex JMD 726), adult male, collected on 3 April 2011; ZMB 77782 (ex JMD 799), adult male, collected on 18 March 2012; ZMB 77783 (ex JMD 800), adult male, collected on 24 March 2012; otherwise same collection details as holotype. Diagnosis. The new species is assigned to Hyperolius for showing the following characters considered diagnostic for the genus (Schiøtz 1999, Channing & Howell 2006): Pupil horizontal, skin smooth, tips of fingers and toes expanded, males with disc-shaped gular flap. Hyperolius jackie is distinguishable from its congeners by the combination of the following characters: (1) size small to medium, SUL of adult males 18.8–23.2 mm, (2) head relatively wide, (3) snout acuminate in dorsal view, rounded in profile, (4) canthus rostralis weakly distinct, (5) tympanum externally discernible, (6) dorsal surfaces smooth with few tiny tubercles, (7) finger and toe webbing not extensive, formulae being I 2.25-(2.25–2.75) II (2+–2.25)-(3–3+) III 2.5-(2+–2.25) IV and I (2–2+)-(2+–2.5) II 1.5- 3 III (2–2-)-(3–3+) IV (3–3-)-(1.75–2-) V, respectively, (8) nuptial pads present in males, (9) pectoral and brachial glands absent in males, (10) hind limbs moderately long, (11) dorsum light green in life with very small brown dots, (12) ventral skin transparent, (13) bones blue, visible through skin, (14) advertisement call consisting of a single pulse group, repeated in series of 2–13 calls, pulse group consisting of 10–18 pulses and lasting 54–107 ms, dominant frequency at 2650– 3150 Hz, (15) 16S rRNA sequence differing by at least 4.5% in the uncorrected pdistance from all currently available sequences of other species of the genus. Description of holotype (Figures 1, 2). Measurements are provided in Table 1. Body moderately sturdy, widest at temporal region, tapering to groin; head large (HL/SUL 0.35, HW/SUL 0.36), slightly wider than long (HW/ HL 1.03); snout long (SL/HL 0.48), acuminate in dorsal view, rounded in profile, slightly projecting beyond lower jaw, wider than long (SL/EE 0.80); canthus rostralis weakly distinct between eye and nostril, straight-lined; loreal region oblique, slightly concave; nostrils rounded, directed anterolaterally; situated closer to tip of snout than to eye (EN/NS 1.34), separated from each other by distance subequal to distance between eye and nostril (NN/EN 0.97); eyes directed anterolaterally, protruding, large (ED/HL 0.39), its diameter shorter than snout (ED/SL 0.82); interorbital distance wider than upper eyelid (IO/EW 1.61) and greater than internarial distance (IO/NN 1.25); tympanum concealed under thick layer of skin but discernible, separated from eye by 29% of its diameter; tympanum diameter slightly more than one-third of eye diameter (TD/ED 0.35), upper jaw with dentition; teeth on premaxilla somewhat larger than those on maxilla; choanae small, oval, located far anterolaterally at margins of roof of the mouth, concealed by upper jaw for about the half in ventral view; vomer processes and teeth absent; tongue long (5.6 mm) and broad (4.0 mm at widest point), bilobed for slightly less than one-third of its length, free distally for half its length; median lingual process absent; vocal sac single, median, subgular; gular flap medially arranged as subcircular area of thickened, glandular skin; vocal sac aperture on each side of the mouth, slit-like, long, directed posterolaterally, situated closer to eustachian tube openings than to base of tongue. Dorsal surfaces of head, trunk and limbs smooth with few scattered tiny low, pointed tubercles; ventral side of limbs and gular region smooth, chin and abdomen slightly more areolate; supratympanic fold absent. Fore limbs slender; hand moderately large (HND/SUL 0.28); tips of fingers enlarged into broad oval disks, each with circummarginal groove; relative length of fingers: I