Astylosternus batesi
It is found in Cameroon south of Sanaga River , Equatorial Guinea , Gabon , southwestern Central African Republic , the Republic of the Congo , and the extreme western Democratic Republic of the Congo ( Mayombe ) . 
<triplet> Cameroon <subj> Equatorial Guinea <obj> shares border with <triplet> Sanaga River <subj> Cameroon <obj> country <triplet> Mayombe <subj> Democratic Republic of the Congo <obj> country