Larvae with elongate anterior dorsal fin rays, elongate pelvic fin rays in some species. Syacium papillosum larvae with anterior 5-8 elongate dorsal fin rays and conspicuous sphenotic spine from pre-flexion stage. One long hooked spine and several short spines develop on pre-opercular margin. Five melanophores along dorsal margin of body and 3-4 melanophores along ventral margin of tail (Fahay, 1983). Number of myomeres 33-36, and numbers of dorsal and anal fin rays 79-94 and 62-75 respectively (Syacium papillosum).
Table Pleuronectiformes
22 geographic zones