122 SCOMBEROIDS. 



teeth, and the exterior maxillary teeth are pointed. In the Carangue, 

 {Caranx carangiis), there is a row of conical teeth exterior to the 

 hand of villiform denticles in the upper jaw ; there is also a similar, 

 but more close-set row in the lower jaw, the two anterior of which 

 are produced, like canine teeth, beyond the rest. 



In the pilot-fish, {Naucrates Ductor), the maxillary teeth are 

 villiform, and are arranged in a narrow band on each jaw, there is 

 a broader, but shorter band of similar teeth in the palatines, and 

 along the middle of the tongue. The dentition of the genera, Kurtus, 

 Seriola, Gallichthys, Blepharis, Olistes, Vomer, Brachinotis B.Dd Elacates 

 is similar to that of the Naucrates ; but the pharyngeal teeth in the 

 latter genus, are more strongly developed. The pharyngeals are 

 paved with small obtuse teeth in the genus Hynnis. In the Apolectus, 

 Centrolophus, and Astrodermus, the minute maxillary teeth are rather 

 ciliiform than villiform, and are disposed in a single row. 



In the Chorinemus two rows of small conical teeth rise above 

 the villous band of denticles in the intermaxillary and premandibular 

 bones. The pterygoid, as well as the palatine, vomerine, and lingual 

 bones, support oval patches of villiform teeth in this genus. 



The jaws of the common mackerel, the type of the Scomberoid fa- 

 mily, are feebly armed with a single row of small pointed and slightly 

 recurved teeth ; the anterior part of each palatine bone is similarly 

 provided, and there are three or four small teeth on each anterior 

 angle of the vomer. The tongue is smooth, but the pharyngeal bones 

 are beset with teeth so long, delicate and flexible, as to resemble 

 hairs. 



The maxillary teeth of the tunny, {Thynnus vulgaris), are rela- 

 tively smaller than those of the mackerel, and resemble the points of 

 small pins, shghtly bent inwards and backwards ; there are about 

 forty of these denticles on each side of the jaw, those of the lower 

 jaw being somewhat the largest. The Scomber pelamys of Linnaeus or 

 the striped-beUied bonito, (Thynnus Pelamys, Cuv.), has teeth like 

 those of the tunny ; but the true, or striped-backed bonito {Pelamys 

 Sarda, Cuv.(l) has the maxillary teeth more strongly developed ; they 

 are conical, slightly compressed, sharp-pointed, and arched towards 



(1) Pkte I, fig. 3. 



