292 CLASSIFICATION OF FISHES^ ETC. 



tralj and placed beneath the anal ; gill-membrane of 

 a smgle strong osseous ray. 



N. cynurus, Schn. pi, 426. 



Trichosoma S-^v. ^^entral fin large^ placed beneath the 

 dorsal; pectoral very small^ placed immediately beneath 

 a fascicle of six detached setiform processes^ which are 

 greatly lengthened ; tail considerably longer than the 

 body, margined beneath by a long narrow anal fin, which 

 unites to the base of the caudal; belly serrated; head 

 and mouth as in Engrauhs. 



Tr. Hamiltonii. Gray, Ind. Zool. i. pi. 85. f. 3. 



Elops. Jaws and palate provided with distinct teeth, 

 or with tooth-like processes on the edges of the 

 maxillaries. 



Setlpinna Sw. Pectoral fins large, the first ray extended 

 into a very long naked filament ; belly very short, 

 serrated ; ventrals small ; tail very long, bordered 

 beneath by the ventral fin, which terminates just 

 before the base of the caudal ; dorsal nearest the head ; 

 caudal forked; mouth excessively wide, opening rather 

 vertically as in Osteoglossum ; eyes close to the snout; 

 jaws margined with small teeth. 



truncata Ham. p. 241. megalura Sw. lb. p. 240. 

 f. 72. (CI. phasa.) 



Elops Linn. Body oblong, lanceolate, but very little 

 compressed ; belly rounded, smooth ; mouth large, 

 opening horizontally ; jaws, tongue, and palate armed 

 with numerous teeth, which are either sharp or 

 rounded ; dorsal and anal fins short ; ventral placed 

 under the dorsal. 



* Palatine teeth sharp. Ehps. 

 El. saurus. Bl. 393. f. 1. Indicus. Russ. pi. 179. 

 * * Palatine teeth blunt. Butirinus. 

 But. glossodontus. Riipp. Atl. ii. pi. 30. fig. 3. 



Jlegalops Lac. Mouth small, nearly sub-vertical, as 

 in Clupea ; body but sUghtly compressed ; belly 

 rounded, smooth ; jaws and palate furnished with 

 numerous close-set sharp teeth ; dorsal fin central, 



