Figure 9 from: Soares KDA, de Carvalho MR (2020) Phylogenetic relationship of catshark species of the genus Scyliorhinus (Chondrichthyes, Carcharhiniformes, Scyliorhinidae) based on comparative morphology. Zoosystematics and Evolution 96(2): 345-395. https://doi.org/10.3897/zse.96.52420

Figure 9 Detail of the postorbital musculature. A, Schroederichthys maculatus, UF 65846, male, 313 mm TL; B, Poroderma africanum, AMNH 43134, male, 505 mm TL. mdp, muscle depressor palpebrae nictitantis; mlp, m. levator palpebrae nictitantis; mrp, m. retractor palpebrae nictitantis; msp, m. espiracularis, ob, orbit; sp, spiracle.