FIGURE 53 in Morphological and taxonomic revision of species of Squatina from the Southwestern Atlantic Ocean (Chondrichthyes: Squatiniformes: Squatinidae)

FIGURE 53. Comparative morphology of lateral dermal folds of head in Squatina species. A) S. squatina (MNRJ 30997, juvenile female, 284 mm TL). B) S. aculeata (MNHN 1979.133, adult, head only). C) S. argentina (MOFURG 457, juvenile male, 359 mm TL). D) S. occulta (MNRJ 30191, juvenile male, 808 mm TL).