68 cYpRixiii.i-:. 



enlarged ; the latcr;il line runs along the middle of the tail. Anal 

 fin short. Pharyngeal teeth ? 

 South Africa. 



1. Abrostomus umbratus. 

 Smith, I. c. pi. 12. fig. 1. 



Scales very small. The height of the body is nearly equal to the 

 length of the head, and a little more than one-fifth of the total 

 (without caudal). (Smith.) 



Streams north of Orange River. 



2. Abrostomus capensis. 



Smith, I. e. fig. 2. 

 Scales small. The height of the body is equal to the length of the 

 head, and two-ninths of the total (without caudal). (Smith.) 

 Cape Colony. 



To this genus probably belong Lahco cajfcr from the Great Fish 

 River and Laheo siclieli from the Orange River, very insufficiently 

 noticed by Castelnau, Poiss. Afr. Austr. p. 60. They are said to 

 have only one small barbel at the corner of the mouth. 



15. DISCOGNATHUS*. 



Garra, sp., Ham. Buch.-f 



Platycara, M'CleU. Journ. As. Soc. Beng. vii. 1838, p. 944. 



Discognathus, Heckel. 



Garra, Dijjcognathichthys, at Lissorhynchus, Bleckcr. 



Scales of moderate size. Dorsal fin without osseous ray, with not 

 more than nine branched rays, commencing somewhat in advance of 

 the ventrals. Snout obtusely roimded, more or less depressed, pro- 

 jecting beyond the mouth, more or less tubercular. Mouth inferior, 

 transverse crescent-shaped ; lips broad, continuous, with an inner 

 sharp edge of the jaws covered with horny substance on the lower 

 jaw ; upper lip more or less distinctly fringed ; hnver lip modijied 

 into a suctorial dish, with free anterior and posterior margins. 

 Barbels two or four ; if two, the upper are absent. Anal scales not 

 enlarged ; lateral line running along the middle of the side of the 

 tail. Anal fin very short. Pectoral fins horizontal. Pharyngeal 

 teeth 5.4. 2—2 .4.5. 



Rivers, especially mountain rivers, of South-western Asia, Con- 

 tinental India, and Ceylon. 



* 1. Platycara notata, Blyth, Journ. An. Soc. Bevg. 1860, p. 101.— Tennasserim. 

 2. Gonorhynchus stenorhynchus, Jerdon, Madr. Journ. Lit. ^ Sc. xv. 1849, 

 p. 310. 

 t Tlie division named Garra by Hamilton Buohanan is an odd compound, 

 without any claim to anything like an artificial or natural genus; it thus liappons 

 that one of the species is a Diacognathus, whicli indurccl Dr. Blcekor to supersede 

 a most appropriate name given to a most natural genus by tlio barbarous deno- 

 mination fiarra ! 



