1899.] STBIAN FISHES 01' tHE FAMILY CICHLIDJ:* 133 



to below anterior border of eye ; 3 or 4 series of scales on the 

 cheek ; large scales on the opercle. Gill-rakers short, 8 to 10 on 

 lower part of anterior arch. Dorsal XIV-XVl 8-10 ; last spine 

 longest, f to I length of liead, | to 4 longest soft rays. Pectoral 

 pointed, | to i length of head, not extending quite so far as origin 

 of anal. Ventral reaching origin of anal or a little beyond. Anal 

 III 7-8 ; third spine as long as or a little shorter than longest 

 dorsal. Caudal rounded. Caudal peduncle as long as deep. 



o< , 19-22 



Scales finely denticulate on the border, 30-33 j^ ; lat. 1. j^-jg- 

 Brown or olive, with more or less distinct dark and light spots on 

 the soft dorsal and caudal ; anal often with a few large round 

 white spots ; a dark band from below the eye to the angle of the 

 mouth ; a dark opercular spot. 



Total length 140 millim. 



Shire Eiver and Lake Nyassa. 



49. TiLAPIA. MONTEIEI, Sp. n. 



Teeth in outer row moderate, separated by an interspace from A 

 band of 5 transverse series of minute closely-set teeth. Depth of 

 body equal to length of head, 3 times or not quite 3 times in total 

 length. Snout with straight upper profile, 1^ diameter of eye, 

 which is 3 1 in length of head and shghtly exceeds interorbital 

 width ; mouth rather large, | width of head ; maxillary exteuding 

 to below anterior border of eye or slightly beyond ; 4 or 5 series 

 of scales on the cheek ; large scales on the opercle. Gill-rakers 

 short, 10 on lower part of anterior arch. Dorsal XIV-XV 

 10-11 ; spines equal in length from the 5th, 5 length of head, a 

 little more than g length of longest soft rays. Pectoral pointed, 

 I length of head, not extending to origin of anal. Ventral reaching 

 origin of anal. Anal III 6-7. Caudal rounded, densely scaled 

 at the base. Caudal peduncle a little deeper than long. Scales 

 mostly with finely denticulate edge, 30 ^ ; lat. 1. ^-^. Brownish ; 

 soft dorsal with oblique dark streaks. 



Total length 95 millim. 



Congo. A single specimen collected by the late J. J. Monteiro. 

 A second specimen of the same size, from Matadi, forms part of 

 the collections made by order of the Congo Free State. 



60. TiLAPIA FASCIATA. 



Chromis fasciatus, Perugia, Ann. Mus. Geneva, (2) x. 1892, 

 p. 970. 



Three series of teeth in the jaws, outer moderately large, inner 

 very minute. Depth of body equal to length of head, 2| to 2| in 

 total length. Snout with straight upper profile, as long as the eye, 

 the diameter of which is 3 times in length of head and exceeds 

 interorbital width ; 3 or 4 series of scales on the cheek ; mouth 

 small, maxillary reaching to between nostril and eye. GUI-rakers 

 short, slender, lO on lower part of anterior arch. Dorsal XV 10-11; 



