ort he astern ▁Democratic ▁Republic ▁of ▁the ▁Congo , ▁South ▁Sud an , ▁south western ▁Eth iop ia , ▁U g anda , ▁and ▁western ▁Ken ya . ▁The ▁specific ▁name ▁b alf ouri ▁hon ours ▁J . W . ▁B alf our , ▁a ▁mission ary ▁in ▁U g anda . ▁Common ▁names ▁B alf our ' s ▁re ed ▁f rog ▁and ▁Eth iop ia ▁re ed ▁f rog ▁have ▁been ▁co ined ▁for ▁this ▁species , ▁with ▁the ▁latter ▁name ▁referring ▁to ▁the ▁now - syn onym ized ▁Hyper ol ius ▁z av att ari i . ▁Pop ulations ▁from ▁the ▁western ▁part ▁of ▁the ▁range ▁may ▁be ▁referred ▁to ▁the ▁sub species ▁Hyper ol ius ▁b alf ouri ▁vir id ist ri atus . ▁ ▁Description ▁Ad ult ▁males ▁measure ▁ ▁and ▁adult ▁females ▁ ▁in ▁sn out – vent ▁length . ▁The ▁d ors um ▁is ▁yellow ▁to ▁brown ▁with ▁thin , ▁dark ▁d ors ol ater al ▁stri pes . ▁In ▁the ▁eastern ▁populations ▁these ▁are ▁shorter , ▁extending ▁ 2 / 3 ▁down ▁the ▁body , ▁whereas ▁in ▁the ▁western ▁populations ▁the ▁lines ▁are ▁green ▁and ▁better ▁developed ; ▁often ▁a ▁dark ▁m idd ors al ▁line , ▁sometimes ▁split ▁into ▁sp ots , ▁is ▁present . ▁The ▁v enter ▁and ▁thro at ▁are ▁white ▁to ▁orange . ▁M ales ▁possess ▁a ▁large , ▁flat , ▁somewhat ▁sh ag reen ed ▁g ular ▁f lap ▁and ▁small ▁as per ities ▁on ▁the ▁d ors um .