Fig. 3
From: Evolution of the facial musculature in basal ray-finned fishes
Cranial musculoskeletal system of Acipenser fulvescens, MZUSP 48364; left lateral view. Anteroventral rostral bones, jugal, postorbital, and anterior region of branchiostegal membrane removed. Abbreviations: AM, adductor mandibulae; CHD, constrictor hyoideus dorsalis; CMD, constrictor mandibularis dorsalis. Color code: Salmon, muscle; sand, bone; blue, cartilage; white, tendon or ligament (regular connective tissue); dark grey, irregular connective tissue; wine, gills