Family Agonidae
This family regroups the Spearnose poacher and related species.
(This family has now been moved to order Perciformes)

Agonopsis vulsa – Northern spearnose poacher
Nautichthys oculofasciatus – Sailfin sculpin

Family Cottidae
This family regroups the true Sculpins and related species.

Family Cyclopteridae
This family regroups the Lumpfishes and relatives.

Family Hexagrammidae
This family regroups the Greenlings and related species.

Hexagrammos decagrammus – Kelp greenling
Hexagrammos octogrammus – Masked greenling

Family Zaniolepididae
This family regroups the Painted greenling and related species.

Oxylebius pictus – Painted greenling

Family Platycephalidae
This family regroups the Crocodilefishes.

Family Rhamphocottidae
This family regroups the Grunt sculpin and related species.

Rhamphocottus richardsonii – Grunt sculpin

Family Tetrarogidae
This family regroups the Waspfishes and related species.