of the Genus Pellonula d:c. 201" 



an.tfljyi'i, 20-23 and 24-25 to Midothrissa pnrva, 26 to 

 Potanwthrissa acufirostrlf!, 27 and 28 to Paeciloikrissa con- 

 (jicdj and 29 and 30 to Fellonuhi sianlei/ana. 



2. Pellonula Jeonensis. 

 Fellonida konensis, Bouleng. Cat. Afr. Fish. iv. p. 172, fig. Ill (1916). 



Deptli of body 5 to 5J in the lengtli, lenotli of liead 3| to 4. 

 Snout nearly as long as diameter ot^eye, which is 3 in lejigth 

 of head; maxillary extending- to below anterior \ of eye; 

 lower jaw a little projecting. 27* gill-rakers on lower part 

 of anterior arcb. 45 scales in a longitudinal seiies, 11 or 12 

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

 16; origin equidistant from end of snout and base of cainlal. 

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

 Caudal peduncle a little longer than deep. 



Sierra Leone. 



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

 District. 



3. Pellonula stanhi/ano, sp. n. 

 rellonula vora.v (part.), Bouleng. Cut. Afr. Fish. i. p. 156 (1909). 



Dej)th of body 4 in the length, length of head 4^. Snout; 

 iis long as diameter of eye, which is 3.^ in length of head ; 

 maxillary extending to btdoAV anterior margin of eye ; lower 

 jaw a little projecting. 33 gill-rakers on lower part of ante- 

 rior arch. 45 scales in a longitiulinal series, 14 in a trans- 

 verse series; ventral scutes 14-f9. 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 (\e^y>. Vertebrae 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. PCECILOTHUISSA, gen. nov. 



Closely related to Pellonula, differing in that tl)e scales in 

 a longitudinal series fire less numerous than the myotomes, 

 the supramaxillary bone is rather small, and the tongue is 

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

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

 3;)/8. Vertebrie 43. 



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

 of the type-specimens, which 1 have examined under a binocular 

 microscope. 



