[f. mod.L. Sturiōn-es (see below; pl. of pop.L. sturio STURGEON) + -IAN.] A fish belonging to the Sturiones, a former order of fishes including the sturgeons (Acipenseridæ) and related families.
1835. Kirby, Hab. & Inst. Anim., II. xxi. 391. The Sturionians agree with the Ossean Fishes in their gills, but their skeleton is cartilaginous.
1842. Brande, Dict. Sci., etc., Sturionians, the name of the family of Cartilaginous fishes of which the sturgeon is the type.
