. On the anatomy of vertebrates [electronic resource] . y a suture. Inthe Shad the palatine articulates with the premaxillary as well asthe maxillary. In the Mormyrus the palatines meet, and unitetogether at the median line. The posterior border is joined tothe entopterygoid, fig. 84, 23, and its outer angle to the palatine contributes to form the floor of the orbit and theroof of the mouth; in many fishes it supports teeth, but is eden-tulous in the Cod. It varies much in form in different species ; isslender and elongated in the wide-mouthed voracious fishes asthe Pike, and is
. On the anatomy of vertebrates [electronic resource] . y a suture. Inthe Shad the palatine articulates with the premaxillary as well asthe maxillary. In the Mormyrus the palatines meet, and unitetogether at the median line. The posterior border is joined tothe entopterygoid, fig. 84, 23, and its outer angle to the palatine contributes to form the floor of the orbit and theroof of the mouth; in many fishes it supports teeth, but is eden-tulous in the Cod. It varies much in form in different species ; isslender and elongated in the wide-mouthed voracious fishes asthe Pike, and is short and broad in the broad-headed, small-mouthed fishes. The maxillary (hagmapophysis of nasal vertebra, fig. 81, 21) isusually a small edentulous bone,1 concealed in a fold of the skinbetween the palatine and premaxillary: it lies, in the Cod, , 21, posterior to and parallel with the premaxillary, 22, which itresembles in form, but is longer and thinner in most osseous fishes ; 1 The Os mystaceum of ichthyotomists. 118 ANATOMY OF the upper, usually bifurcate, end of the maxillary, forms a socketon which the ascending or nasal process of the premaxillaryglides; a posterior tubercle at this end is attached to the palatine,and ligaments connect the same expanded end to the nasal, theturbinal, the vomer, and the premaxillary: the lower and hinderexpanded end of the bone is attached by strong elastic ligament,in which a labial gristle is commonly developed, to the lower jaw. In the Salmon and Herring tribe, the Sudis, fig. 86, 21, Amia,and most Ganoids, the maxillary supports teeth. In the Plecto-gnatlii (Globe-fish and File-fish), themaxillaries coalesce wholly or in partwith the premaxillaries. In the Lepi-dosteus the contrary condition prevails:the premaxillary and maxillary bonesconstitute, indeed, a single dentigerousarch or border of the upper jaw, as inDisarticulated bones of paiato- %• 86, but are subdivided into manymaziiiaryaxcn (.Arapwimagigas) bo
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