332 CICHLID-E. 



spaced, about 40 in upper jaw ; 4 series of scales on the clieek, width oi 

 scaly part exceeding diameter of eye. Gill-rakers rather short, 10 on 

 lower part of anterior arch. Dorsal XV 12 ; spines increasing in length 

 to the last, which measures ^ length of head and | longest soft rays. 

 Anal in 11; third spine as long as last dorsal. Pectoral f length of 

 head, not extending quite to vertical of origin of anal. Ventral reaching 

 vent. Caudal truncate. Caudal peduncle 1| times as long as deep. 

 Scales finely denticulate, 35 ^ ; lateral lines f^. Brownish above, silvery 

 white beneath ; three dark bands on each side, one along the upper 

 outline of head and body, another above the upper lateral line, the third 

 from the prseorbital to the base of the caudal, passing through the eye; 

 fins whitish. 



Total length 165 millim. 



Lake Nyassa. 

 1. Type. L. Nyassa. Capt. E. L. RhoaJes (P.). 



16. PARATILAPIA LONGIROSTRTS. 

 Hilgend. Sltzb. Gcs. natnvE. Fr. Berl. 18S,S, p. 77; Bouleng. Proc. Zcol. Soc. 



1898, p. 140 ; Pellegr. Mem. Soa. Zool. France, xvi. 1904, p. 2C1 ; Bouleng. 



Fish. Nile, p. 467, pi. Ixxxvi. fig. 2 (1907), and Ann. Mus. Genova, (3) v. 



1911, p. C5. 

 Ilemich'omis longirostris. Pfeff. Thierw. O.-Afr., Fisclie, p. 20 (189G). 



Depth of body 3 to 4-^ times in total length, length of head 2f to 3^ 

 times. Head large, 2\ to 3 times as long as broad; lower jaw strongly 

 projecting, the chin pointed ; snout longer than broad, with straight or 

 ■convex upper profile, 1\ (young) to 2 times as long as eye, which is 

 3 (young) to 5^ times in length of head, 1 to 1\ times in interorbital 

 width, and about equal to praeorbital depth ; mouth not extending to 

 below anterior border of eye ; teeth, in the adult, in 4 or 5 series, the 

 outer long, feebly curved, and rather far apart, the inner very small and 

 either all unicuspid, or partly tricuspid ; in the young, outer teeth 

 bicuspid, inner tricuspid ; 3 to 5 series of scales on the cheek, width 

 ■of scaly part much exceeding diameter of eye. Gill-rakers short and 

 stout, 8 to 11 on lower part of anterior arch. Dorsal XIV-XVI 9-10; 

 spines increasing in length to the last, which measures |^ to f length of 

 head ; longest soft rays f to | length of head. Anal 111 8-10 ; third 

 spine as long as or a little shorter than last dorsal. Pectoral f to f 

 length of head, not extending to vertical of origin of anal. Ventral 

 reaching vent or origin of anal. Caudal rounded or subtruncate. 



