Phrynobatrachus parkeri

endemic to the west-central and northeastern Democratic Republic of the Congo. It is only known from a few widely separated localities.^[1][2] It is similar to Phrynobatrachus acridoides (Cope, 1867),^[3] and it might be a synonym of the latter.^[1] The specific name parkeri honors Hampton Wildman Parker, an English zoologist and herpetologist.^[4][5] Common name Parker's river frog has been coined for it.^[2][4][5]

dorsum. Coloration is polymorphic. One form is dorsally dark greyish brown, usually with black areas overlying the dermal ridges. The second color morph is otherwise similar but has a narrow yellow or orange vertebral stripe superimposed on the previous pattern. The third morph has a reddish brown dorsum, edged with a black line and grayish brown sides. Most individuals have a narrow oblique stripe on the rear of the thigh. All individuals have whitish bellies, and males may have a grey or black throat. Mature males have a subgular vocal sac, grey nuptials pads, and many tiny spinules on the throat and the chest.^[3]