238 ]\Ir. G. A. Boulenger on new 



mm. 



4th finger, metacarpus 27 



„ ]st phalanx 9 



„ 2nd phalanx 10 



5th finger, metacarpus 27 



„ 1st phalanx 9 



„ 2nd phalanx 10 



Tail 18-0 



Lower leg 16 



Foot 7 



XXVI. — Diagnoses of new Fishes discovered hy Copt. E. L. 

 lihoades in Lake JVi/ctssa. By G. A. Boulenger, F.R.S. 



A LARGE collection of fishes from Lake Njassa, comprising 

 examples of thirty-four species, twelve of which are uii- 

 describerl, has been presented by Capt. E. L. Rhoades to the 

 British Museum. Most of the specimens are in an excellent 

 state of preservation, and their value is much enhanced by 

 coloured sketches made by Capt. Rhoades himself from them 

 in the fresh condition. Thanks to this rich material, I hope 

 ere long to prepare for publication an illustrated account of 

 the fishes of Lake Nyassa. In the meanwhile I have drawn 

 up diagnoses of the new species. 



Barhus rJioadesii. 

 D. IV 8. A. Ill 5. L. lat. 37-40. L. tr. %^. 



Depth of body 3? to 3| times in total length, length of 

 head 3§ to 4 times. Snout rounded, 3^ to 3^ times in length 

 of head, eye 5 times, interorbital width 3 j to 4 times ; width 

 of mouth 3 to 3^ times in length of head; lips moderately 

 developed, interrupted on the chin ; barbels 2 on each side, 

 anterior minute, posterior J to \ diameter of eye. Last 

 simple ray of dorsal very strong, bony, not serrated, rigid 

 portion about | length of head. Ventrals immediately in 

 front of origin of dorsal. Caudal peduncle 1^ to If times as 

 long as deep. 3 or 3^ scales between lateral line and ventral, 

 16 or 18 round caudal peduncle. Olive to dark green above, 

 white beneath. 



Hix specimens, measuring 250 to 325 ram. 



