24.6 CHAEACINIDJl. 



Dorsal IV 14, originating well in advance of ventral and at equal 

 distance from end of snout and from caudal, longest ray -| length of 

 head. Anal III 11. Pectoral nearly \ length of head, a little longer 

 than ventral. Caudal covered with small scales, deeply forked, lobes 

 rounded. Caudal peduncle once and \ as long as deep. Scales 96 y 5 ' 

 12 between lateral line and root of ventral. Brownish, with traces of 

 two alternating series of large dark spots on each side, those of the 

 lower series about 10 in number and on the lateral line ; fins greyish. 



Total length 250 millim. 



Alima River, Upper Congo — Type, in Paris Museum, examined. 



10. PHAGO. 

 Giinth. Ann. & Mag. N. H. (3) xv. 1865, p. 209 ; Bouleng. Poiss. Bass. Congo, 

 p. 177 (1901). 



Snout long and narrow ; mouth large ; jaws beak-like, upper movable 

 upwards ; maxillary very small ; praemaxillary and dentary with two 

 series of teeth, the outer strong, compressed, bicuspid, the anterior 

 upper larger, the inner very small and conical, the two series separated 

 by a considerable interspace. Cheek entirely covered by the sub- 

 orbitals ; nostrils near the eye, close together, separated by a valvular 

 flap ; gill-membranes narrowly united to isthmus. Body elongate, feebly 

 compressed. Scales large, hard, rugose, strongly ciliated ; lateral line 

 straight, along the middle of the side ; no scaly process at base of 

 ventral. Dorsal fin with 12 or 13 rays, above the ventrals; anal with 

 10 to 12 rays ; adipose dorsal fin very small. Vertebra? 44 (20 + 24). 



Congo, Niger. 



Synopsis of the Species. 

 Snout longer thiin postocular part of head ; 



Se. 47 gv, 1 between dorsal fin and lateral 



line series, 6 round caudal peduncle ... 1. P. loricatus, Gthr., p. 247. 

 Snout longer than postocular part of head ; 



Sc. 47 5?, 2 between dorsal fin and lateral 



line series, 6 round caudal peduncle ... 2. P. intermedins, Blgr., p. 247. 

 Snout shorter than postocular part of head ; 



Sc. 42-45 gf , 2 between dorsal fin and lateral 



line series, 8 round caudal peduncle . . . ■"''. P.J0M?<?«<7<?n,Schilth.,p.248. 



