PETERSIUS. 235 



Tanga River, Usambara, German East Africa. — Types in Stockholm 

 Museum. 



1-2. Two of the types. Tanga. Prof. Sjostedt (C.) ; 



Prof. E. Lonnberg (P.). 



5. PETERS ITJS LEOPOLDIANUS. 

 Bouleng. Ann. Mus. Congo, Zool. i. p. 90, pi. xxxvii. fig. 4 (1899), and Poiss. Bass. 

 Congo, p. 166 (1901). 



Depth of body equal to length of head, 3J to 3§ times in total length. 

 Head longer than deep, with straight upper profile ; lower jaw projecting 

 beyond upper ; snout shorter than eye, which is 3 times, or a little less, 

 in length of head and equals interorbital width ; maxillary extending to 

 below anterior border of eye ; outer prasmaxillary teeth 4, almost on a 

 line with and alternating with the inner, 8 in number ; 8 teeth in lower 

 jaw. Gill-rakers long and closely set, 25-30 on lower part of anterior 



Fig. 17S. 





Peterslus leopoldictnus. 

 Type (A. M. C). f 



arch. Dorsal II 8, originating above base of ventral, at equal distance 

 from end of snout and from caudal, longest ray nearly as long as head. 

 Anal III 19-20. Pectoral | to § length of head, not reaching ventral. 

 Caudal forked, with pointed lobes. Caudal peduncle a little longer than 

 deep. Scales 30-31 gr, 2 between lateral line and root of ventral. Olive- 

 grey above, silvery beneath, with a dark lateral band. 



Total length 90 millim. 



Upper Congo (Lake Leopold II.). — Types in Congo Museum, 

 Tervueren. 



1-3. Types. Kutu, L. Leopold II. M. P. Delhez (C). 



4. Skel. „ „ „ 



6. PETERSIUS BRUMPTI. 

 Pellegr. Bull. Mus. Paris, 1906, p. 368. 



Form and coloration as in P. leopoldhinus. but depth of body only 



