222 CICHLID.E. 



scales on the cheek. Gill-rakers short, 12 on lower part of anterior 

 arch. Dorsal XV 14; spines subequal from the fifth, a little less than 

 J length of head. Anal III 9. Pectoral shorter (]) than head, not 

 reaching anal. Candal rounded [1). Caudal peduncle as long as deep. 

 Scales feebly denticulate, 34 j^ ; lateral lines j^. Olive above, golden 

 beneath; about 10 dark transverse bands; a dark opercular spot; soft 

 dorsal with brownish dots. 



Total length 78 millim. 



Zambesi. — Type in Paris Museum. 



oG. TILAPIA FUELLEBORXTI. 

 HilgcnJ. & P:ipponli. Sitzb. Gcs. NaturE. Fr. Berl. 100:5, p. 2G2. 



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

 Snout as long as eye, which is 3| times in length of head and equals 

 interorbital width ; mouth extending to between nostril and eye ; teeth 

 in 3 series in ujiper jaw, _ : to 44 in outer series; 4 series of scales 

 on the cheek. About 8 gill-rakers. Dorsal XIV^-XV 8-0; spines 

 increasing in length to the last, which measures f length of head. 

 Anal III 8 ; third spine as long as or a trifle shorter than last dorsal. 

 Pectoral not quite reaching vertical of origin of anal. Ventral reaching 

 vent or not quite so far. Caudal not emarginate. Caudal peduncle 

 much longer than deep. Scales strongly denticulate, 28 jy ; lateral 

 lines j|. Brownish, borders of the mouth blackish. 



Total length 43 millim. 



Lake Rukwa. — Types in Berlin Museum. 



a?. TILAPIA CALLIPTERA. 



di)'o)nis callijitertts, Giintli. Proc. Zool; Soc. 1893, p. 623, j)!. Iv. fig. B; Bouleng. 



op. cit. 181*0, p. OK). 

 Cftromis suI>oculani>, part., Giintli. 1. c. p. 1)21. 



Ctenochroniis calUnterus, Pl'cff. Thierw. O.-Afr., Fisclie, p. 19 (189G). 

 Tilapia calUptera, Bouleng. Tr. Zool. Soc. xv. 1898, p. 4, and Proc. Zool. Soc. 



1899, p. 132; Pellegi-. Mom. Soc. Zool. Franco, xv. 1904, p. 33(1. 



Depth of body 2| to 2| times in total length, length of head 2f to 

 3 times. Head twice as long as broad ; snout rounded, with straight 

 upper profile, as long as broad, shorter than postocular part of head ; 

 eye a little shorter than snout, 0^ (young) to 4 times in length of head, 

 e(pial to or a little less than interorbital width, a little more than least 



