244 Mr. G. A. Boulenger on neio 



Total length 1770 mm. ; tail 250. 



A single male specimen. 



Tliis snake can only be compared with C. schrenchii, 

 Strauch, from Corea and Eastern (Siberia, but it differs in the 

 number of upper labial shields, tlie mostly single subcaudals, 

 and in other points of minor im[)ortance. 



XXII. — Descriptions of Three new Cyprinid FisJtes from 

 East Africa. Qy G. A. Boulenger, F.R.iS. 



(Published by permission of the Trustees of the British Museum.) 



Laheo (jracilis. 



Body strongly compressed, its depth 4^ to 4| times in 

 total length. Head ik times in total length ; snout rounded, 

 as long as postocular part of head ; eye perfectly lateral, 

 3^ times in length of head ; interorbital width ^ length of 

 head ; width of mouth, with lips, 3^ times in length of head ; 

 lips rather feebly developed, without transverse plica3, with a 

 fringe of conical papillse ; edge of rostral flap entire ; a small 

 barbel. Dorsal III 10-11, equally distant from nostril and 

 from caudal, upper edge concave^ longest ray as long as head. 

 Anal 111 5, not reaching caudal. Pectoral slightly shorter 

 than head, not reaching ventral, which is inserted below 

 middle of dorsal. Caudal deeply notched, crescentic. 

 Caudal peduncle once and a half as long as deep. Scales 

 40-42 ^;!, 4 between lateral line and ventral, 16 round caudal 

 peduncle. Dark brown above, whitish beneath. 



Total length 120 mm. 



Three specimens from the Juba River near Gob wen, 

 collected by Mr. A. Blayney Percival. Types in the British 

 Museum and in the Nairobi Museum. 



Allied to L. inesops, Gthr., but body more elongate, eye 

 larger, and mouth smaller. 



Burhus procatopus. 



Depth of body equal to length of head, 3_^ to 4 times in 

 total length. JSnout rounded, 3 to 3^ times in length of 

 head ; eye 3^ to 3^ times in length of head, interorbital width 

 3^ times; mouth inferior, its width 4 times in length of head j 

 lips moderately developed, lower uninterrupted ; two barbels 

 on each side, posterior a little longer than anterior and as 



