298 • CYPRINIDJ3. 



orbitals not dilated. Pscudobranchise. Pharyngeal teeth 5.3. 2 — 

 2.3.5 {denies voratorii). 

 China. 



The fish for which I propose this genus appears to be closely 

 allied to Squcdioharbus, to which I should have referred it but for 

 the circumstance that Kncr, who examined its intestines, does not 

 mention the colour of the peritoneum, which he certainly would have 

 done if it had been black as in Squcdioharbus. The absence of 

 barbels would not form a generic character by itself. 



1. Ochetobius elongatus. 



Opsarius (?) elongatus, Knet; Novara, Fische, p. 358, taf. 15. fig. 1. 

 D. 2/10. A. 2/10. Y. 10. L. lat. 68-70. L. transv. 9/?. 



The height of the body is two-thirteenths of the total length 

 (without caudal), the length of the head one-iifth. There arc four 

 longitudinal series of scales between the lateral line and ventral fin. 

 kSnout longer than the eye, which is one-fifth of the length of the 

 head. Origin of the dorsal fin midway between the end of the 

 snout and the root of the caudal fin, a little in advance of that of the 

 ventrals. Coloration uniform. {liner.) 



Shanghai. 



Eleventh Group. HYPOPHTHALMICKTHYINA. 

 Anal fin elongate. Lateral line running nearly along the 

 median line of the tail. Mouth without barbels. Abdomen not 

 trenchant. No dorsal spine. Pharyngeal teeth in a single 

 series. 



78. HYPOPHTHALMICHTHYS. 

 Hypophthalmichthys, Bleeker, Prodr. Cypr. p. 405. 

 Scales small. Lateral line running nearly along the middle of the 

 side of the tail. Dorsal fin short, opposite to the interspace between 

 ventrals and anal. Anal rays rather numerous. Barbels none. 

 Mouth obliquely directed upwards, with very thin lips. Eye situated 

 in the lower half of the head, its lower margin being below the level 

 of the angle of the mouth. Suborbitals narrow. Gill-rakers very 

 long, slender, lanceolate ; pseudobranchia) none. GiU-membranes 

 united, forming a broad bridge across the isthmus, to which they are 

 not attached. Pharyngeal teeth 4 — 4, not serrated, compressed in 

 the longitudinal axis of the bone. 

 China. 



1. Hypophthalmichthys niolitrix. 

 Leuciscus molitrix, Cuv. S,- Vol. xvii. p. 360 ; Jiichards. Iddh. Cliina, 

 p. 295. 



hvpophthalmus, {Gray) Mkhards. Icldhyvl. Voy. Stdph. p. 139, 



pi. 63. fig. 1. 



