Nasoral region with lifted anterior nasal flap and exposed posterior nasal flap. A, Scyliorhinus ugoi, USNM 221611, male, 432 mm TL; B, Cephaloscyllium isabella, USNM 320594, female, 390 mm TL; Poroderma pantherinum, SAIAB 34577, male, 640 mm TL. anf, anterior nasal flap; ful, flap on the upper lip margin; llf, lower labial furrow; mrd, mesonarial crest; nb, nasal barbel; pnf, posterior nasal flap; pog, postoral groove; ulf, upper labial furrow. Scale bar: 20 mm.

 
 
  Part of: 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