Annandale's Shrub Frog

Snout to vent length 12–13.4 mm. Body stout in shape. Head is laterally convex. In lateral and dorsal view snout oval shaped. Canthal edges rounded. Loreal region flat. Interorbital space concave. Internarial space flat. Nostrils oval. Pupil oval, horizontal. Tympanum distinct, oval, vertical, its outer rim narrow but clear. Pineal ocellus absent. Vomerine ridge absent. Tongue moderate, elongate, emarginate; no lingual papilla. Supratympanic fold feebly defined. Cephalic ridges absent. Skin on head not co-ossified. Upper arm short, lower arm slender. Dorsal and lateral parts of head and body, and lower part of flank, smooth. Dorso-lateral fold absent. Dorsal and lateral parts of upper arm, lower arm, thigh, shank and foot smooth. A narrow dermal ridge on mid-dorsum to back of head, then to vent. Throat, chest, belly and underside of thigh smooth. Pseudophilautus semiruber is distinguished from P. simba, the sibling species of P. semiruber, by having the supratympanic fold indistinct (vs. distinct in P. simba); webbing present (vs. rudimentary) between all toes; throat, chest and belly smooth (vs. granular); white patches distinct, evenly distributed on throat, chest, anterior and mid-belly, fewer on posterior belly (vs. diffused white patches only on chest and anterior half of belly, absent on throat and lower belly); throat ashy brown, chest and belly reddish brown (vs. …

Pseudophilautus semiruber was originally described from a single specimen collected at Pattipola, Sri Lanka (06º51'21"N, 80º49'40"E; 1,850 m a.s.l.). The species is probably restricted to the jungle forests of this area and is probably under-represented in collections because its small size may have led to it being overlooked as the juvenile of a larger Pseudophilautus species. This species is strictly a day-active litter dwelling species, that is similar in habit to its sister species.