2. CHEOMIS. 271 



8. Chromis latus. 

 D. ||. A. |. L. lat. 28. L. transv. ^. 



Teeth rather small, nineteen on each side of the outer series of 

 the upper jaw; scales below the eye in three series; snout obtuse 

 and rather elevated ; the height of the body is contained twice and 

 a quarter in the total length (without caudal) ; the lower profile 

 nearly as much curved as that of the back ; the soft dorsal does not 

 extend to the middle of the caudal. Uniform brownish-olive, each 

 scale shining golden in the centre ; upper part of the opercular mem- 

 brane black ; a round black spot behind the base of the last dorsal 

 spine. 



West Africa. 



a. Four inches and a half long. West Africa. From Mr. Fraser's 

 Collection. 



Description. — Body compressed, rather elevated, its greatest depth 

 being contained only twice and a quarter in the total length (without 

 caudal) ; the upper profile of the head is straight, and descends in as 

 obHque a line as in Cli. tristrami. The length of the head is con- 

 tained thrice and a quarter in the total (without caudal). The snout 

 is rather short and elevated, somewhat longer than the diameter of 

 the eye, which is less in width than the interorbital space. The 

 vertical limb of the prseoperculum is considerably longer than the 

 horizontal ; both are naked, and on the widest part narrower than 

 the scaly portion of the cheek. Interoperculum subvertical as in 

 Ch. tristrami. 



Caudal shghtly emarginate. The outer ventral ray prolonged into 

 a filament, which extends to the vent, or as far backwards as the 

 pectoral. 



9. Chromis guineensis. 

 Haligenes guineensis, Bleek. in lilt. 



D. ||. A. J. L. lat. 30. L. transv. 3/?. 



The height of the body is contained thrice and a quarter or thrice 

 and three-fifths in the total length (with the caudal), the length of 

 the head four times and a third or four times and two-fifths. The 

 maxillary extends to below the anterior part of the eye. Teeth broad. 

 Scales below the eye in four series. Operculum with a blackish spot 

 behind ; dorsal and caudal fins with stripes and with ocelli. {Bl.) 



Ashantee. 



10. Chromis pleuromelas. 



Tilapia pleuromelas, Ihimer. Ann. Mus. x. p. 253. 



U 10 



Scales below the eye in two series. The height of the body is 

 scarcely more than one-half of the total length (without caudal). 

 Brownish ; a large black blotch on each side. {Dum.) 



Senegal. 



