240 PISCES. 



But a single species is known; il is of a silver colour and in- 

 habits the Indian Ocean.(l) 



Hyodon, Lesueur. 



The form of a Herring; abdomen trenchant but not dentated; the 

 dorsal opposite to the anal; eight or nine rays in the branchiae and 

 hooked teeth in the jaws, vomer, palatines and tongue, as in the 

 Trouts. 



The species known inhabit the fresh waters of North Ame- 

 rica.(2) 



Erythrinus, Gronov. 



The fishes of this genus, like all the rest of the family, have small 

 intermaxillaries, and a great portion of the sides of the upper jaw 

 formed by the maxillaries; a range of conical teeth occupies the 

 edges of each jaw, among the anterior of which are some larger than 

 the others. Each of the palatines is provided with a plate of small 

 and crowded teeth, and there are but five broad rays in the bran- 

 chiae. The head is round, obtuse, furnished with hard bones, aud 

 without scales. Indurated suborbitals cover the whole cheek. The 

 body is oblong, slightly compressed, and covered with broad scales 

 like that of the Carp; the dorsal is opposite to the ventrals; the sto- 

 mach is a wide sac, and there are numerous small caeca. The na- 

 tatory bladder is very large. 



They inhabit the rivers of hot climates, and their flesh is of an 

 agreeable flavour. (3) 



bonuk, Lacep., the Esox argenteus, Forst. App. Bl. Schn., 396. Having' seen the 

 American species only, I am not yet well acquainted with their distinguishing 

 characters. 



(1) The Esoce cMrocentre, Lacep., V, viii, 1, sabre or sahran of Commerson, 

 which is tlie same fish as the Clupea dentex, Schn., p. 428, Forsk., p. 72, or as 

 the Clup. dorab, Gm., and as the Wcdlah, Russ., 199. It is probably also the Par- 

 ring, or Chnees, of the Moluccas, Ren., VIII, 55. 



(2) Hyodon dodalus, Lesueur, Ac. Nat. Sc. Philad., I, pi. xiv, and p. 367; — H. 

 iergisiis,ld. lb., p. 366. 



(3) Esox malabaricus, Bl., 392; — Synodus erythrinus, BL, Schn. Gron., Mus. , 

 VII, vi; — Syn. iareira, Bl. Schn., pi. 79, Marcgr., 157; — Syn. palustris, Bl. Schn., 

 maturaque, Marcgr., 169; — Erythrinus tceniatus, Spix, XIX; — probably also the 

 Esox gymnocephalus, L. 



N.B. The Synodus vulpes, only known from Catesby, II, xxx, which appears to 

 me to be the same as the But. banane, and as the Synodus synodus, Schn. only 

 known by a fig. of Gronovius, Zooph., and Mus., VIII, 2, is a Salmo saurus, 

 which had lost its second dorsal. The Esox synudus, L., so far as we can judge 

 from the short description, is different. 



