( 447 ) 



reaching ventral, ventnil fin scan-cly cxtendinu- to anal. Scales firm, minutely 

 granulated, the grannies forming indistinct radiating stria-. There are three series 

 of scales between the lateral line and ventral fin ; the larger scales of the side of the 

 trnnk pass abrnptly into the small scales of the abdomen. Colouration uniform, in a 

 certain light a dark line may be seen along each series of scales. 



The jiharyngeal teeth are firmly wedged into one another, in tlie outer series 

 the convex side of the posterior tooth fitting into the concavity of the one preceding ; 

 the teeth of all three series form one triangular patch with a continuous masticatory 

 surface. 



Three specimens from the Onni Erliiah and 1{. Talmist, from 6 to 11 in. long. 



Barbus riggenbachi sp. nov. (PI. XXIII.). 



U. 12 ; A. 8 ; L. lat. 32-33 ; L. transv. 5^-5. 



Osseous dorsal ray rather strong, as long as the head without snout, not 

 serrated. Scales thin, not striated ; 2A series between the lateral line and ventral 

 fin. The height of the body is contained 4 times, the length of the head 4§ times 

 in the total length ("without caudal) ; eye of moderate size, much shorter than the 

 snout, two-ninths of the length of the head and one-half of the width of the inter- 

 orbital space, which is convex. Barbels four, the anterior nearly as long as, and 

 the posterior longer than, the eye. Snout conical ; mouth horseshoe-shaped, 

 inferior, of moderate width ; margin of lower jaw not sharpened, with rather thick 

 lip, which, however, is broadly interrupted in front. Mucous membrane of the 

 interior of the month with singular appendages ; a transverse patch of enlarged 

 pajiillae crosses the mandibniary symphysis ; the membranous velum, generally 

 found in Cyjirinoids behind the middle of the ujiper jaw, is broad, and flanked on 

 each side by a stiff crescentic lobe or pad attached to the inside of tlie upper jaw. 

 Origin of the dorsal fin midway 1 etween the end of the snout and the root of the 

 caudal fin, opposite to the base of the ventral. Anal reaching caudal fin ; pectoral 

 not reaching ventral. A narrow lilackish band along the middle of the hinder part 

 of the body. 



Two specimens from the Oum Erbiah, and one from the R. Talmist, measuring 

 from to 7 in. 



This species is near to B. karte/i/, from which it differs by the remarkable 

 lobules on the inside of the jaws ; its physiognomy is also very different, though 

 the distinction is ditticnlt to express in words. 



Barbus reinii. 



GuDtli., .!««. (t- Mag. N. H. 1874, March, p. 231, pi. 13 ; Nov. Zimi,. VIII p. 367. 



Seems to be the most common species of barbel in the Oum Erbiah and Talmist, 

 and to grow to a mnch larger size, than would be indicated by the specimens pre- 

 viously known. In the present collection is an individual \~h in. long. Specimens 

 of this size show somewhat different proportions of the various parts of the body ; 

 the eye is much smaller and the snout longer — nearly thrice the diameter of the eye ; 

 the dorsal spine is relatively shorter and stouter, contained If times in the head ; 

 it is opposite to the root of the ventrals. In all the specimens the symphysial part 

 of the mandibniary lip is separated by a more or less deep incision from the lateral 

 parts, forming a short bnt distinct lobe.* 



* This condition was nearly obliterated in the typical example (figured) by the string of the label 

 att^ached to the fish. 



