Alphestes afer (Bloch, 1793)

On 4 March 2004, PW photographed a grouper in the fish market of São Tomé City that was unfamiliar to him. A tissue sample for genetic analysis was also obtained. The fish was identified as Alphestes afer (Bloch, 1793) by P.C. Heemstra and an examination of DNA sequences by M.T Craig also indicated that the specimen was close to western Atlantic specimens of the same species (Craig et al. 2007).