of the Genus Pellonula &c. 



201 



orisoriji>\ 20-23 and 24-25 to Mic.rothrissa pnrra, 26 to 

 Polamotlirlssa ocutirostria, '27 and 28 to Poeciloihrissa con- 

 (/ica^ and 29 and 30 to I'ellonula stanleijana. 



2. Pellonula lean en sis. 

 Felhnula konensis, Eouleng. Cat. Afr. Fish. iv. p. 172, fig-. Ill (1916). 



Depth of body 5 to 5_]^ in the lengtli, length of li.ead 3| to 4. 

 Snout nearly a.s long a.s dinmeter of eye, which is 3 in length 

 of htad; maxilhiiy extending to below anterior \ of eye; 

 lower jaw a little projecting. 27* gill-raker.s on lower pait 

 of anterior !ircb. 45 scales in a longitudinal series, 11 or 12 

 in a transverse series; ventral scutes 13-14 + 8-9. Dorsal 

 IG ; origin equidistant from end of snout and base of caudal. 

 Anal 16-17. Pelvics below origin or anterior rays of dorsal. 

 Caudal j)('duncle a little longer than deep. 



Sierra Leone. 



Two specimens, 57 mm. long, from the North Sherbo 

 District. 



3. Pellonida stanleyano, S]"). n. 

 Tellonida vorax (part.), Eouleng. Cat. Afr. Fish. i. p. 156 (1909). 



Depth of body 4 in tlie length, length of head 4^. Snout 

 as long as diameter of ej'e, which is 3.^ in length of head ; 

 maxillary extending to below anterior margin of eye ; lower 

 jaw a little jirojecting. 33 gill-rakers on lower part of arite- 

 rior arch. 45 scales in a longitu.dinal .'■eries, 14 in a trans- 

 verse series; ventral scutes 14 + 9. Dorsal 16-17; origin 

 nearer to end of snout than to base of caudal. Anal 18. 

 Pelvics below anterior rays of dorsal. Caudal peduncle 1^ 

 as long as <\eQ\). Vertebras 43. , 



Stanley Falls. 



Two specimens, 110 mm. in total length ; one of these is 

 a skeleton^ but I have been able to count the gill-rakers. 



2. PcECiLOTiiKiSSA, gen. no v. 



Ch'Scly related to Pellonula, differing in that the scales in 

 a longitudinal series are less numerous than the myotomes, 

 the suj)iamaxillary bone is rather small, and the tongue is 

 toothless. Dorsal fin of 13 rays, above the interspace be- 

 tween pelvics and anal, tbe last with 20-21 rays. Scales 

 33/8. Vertebrte 43. 



* I find 27 gill-rakers on the lower part of the anterior arch in each 

 of the type-specimens, which I have examined under a binocular 

 luicroscoiu;. 



