Posterior border of gill opening evenly rounded, without fleshy outgrowths; pelvic-fin
rays 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (Escualosa) 3
2b. Posterior border of gill opening with 2 distinct fleshy outgrowths (Fig. 11); pelvic-fin rays