Scorpaeniformes

Scorpaeniformes: Contains the "mail-cheeked" fishes, distinguished by the suborbital stay, a posterior extension of the third infraorbital bone (counting the lachrymal), which extends across the cheek to the preoperculum and is usually firmly attached to that bone. Head and body tend to be spiny or have bony plates; pectoral fin usually rounded, membranes between lower rays often incised; caudal fin usually rounded (occasionally truncate, rarely forked).

Families in this order:
 * Abyssocottidae
 * Agonidae
 * Anoplopomatidae
 * Apistidae
 * Aploactinidae
 * Bathylutichthyidae
 * Bembridae
 * Caracanthidae
 * Comephoridae
 * Congiopodidae
 * Cottidae
 * Cottocomephoridae
 * Cyclopteridae
 * Dactylopteridae
 * Ereuniidae
 * Eschmeyeridae
 * Gnathanacanthidae
 * Hemitripteridae
 * Hexagrammidae
 * Hoplichthyidae
 * Liparidae
 * Neosebastidae
 * Normanichthyidae
 * Parabembridae
 * Pataecidae
 * Peristediidae
 * Platycephalidae
 * Plectrogenidae
 * Psychrolutidae
 * Rhamphocottidae
 * Scorpaenidae
 * Sebastidae
 * Setarchidae
 * Synanceiidae
 * Tetrarogidae
 * Triglidae