There are currently 4 recognized species of African Bullfrog (http://www.frogforum.net/african-bul...us-status.html) and possibly couple more variants (i.e. Tanzania African Bullfrog). If interested is comparing male and female of all species, recommend read Vosjoli's book: Amazon.com: Giant African Bullfrogs: Life History and Captive Husbandry eBook: Robert Mailloux, Philippe de Vosjoli: Kindle Store.

Kingsnake is just a classified advertising website as SCF stated. When ordering from anyone there, have to know seller reputation. Also, read the shipping warranty since many sellers at Kingsnake do not guarantee live arrival on frogs. Good luck !