1902.] FISHES FROM THE GOLD COAST, 333 



cheek. Form of the body rather oblong, its depth being con- 

 tained 23 or 2| in its length (without caudal), and more than the 

 length of the head, Gill-rakers of the outer arch twelve (4-1-8). 

 Pectoral fin as long as, or even slightly longer than, the head, 

 extending to the vent or origin of the anal. Yentral produced 

 into a filament which may reach beyond the origin of the anal. 

 The eighth dorsal spine is contained 2| or 2g in the length of the 

 head. Caudal fin truncate, with the corners pointed. Scales 

 cycloid. Colour variable : the whole fish may be brownish-black, 

 the vertical and ventral fins and the base of each scale being deep 

 black ; or it may be of a uniform light colour, with some 

 in-egular black blotches on the opercle and throat. 



Three specimens from Lake Busum-chi, measuring from 100 

 to 125 millim. 



Chromis busumanus, sp. n. (Plate XXX.) 



D. J-f A. |. P. 13. L.lat. 29-30, L, transv. 3/11. 



Scales cycloid, those on the cheek in three (two ^) series. Teeth 

 small, a few notched, in several series, from 24 to 28 on each 

 side of the upper jaw ; those of the lower jaw minute. Mouth 

 rather small, the maxillary scarcely reaching the vertical from 

 the anterior border of the eye. The depth of the body is two 

 fifths of the total length (without caudal), the length of the head 

 one third. Eye one fourth of the length of the head, two thirds 

 of that of the snout, and rather less than the width of the inter- 

 orbital space. JVape of the nech more or less elevated, rendering 

 the upper profile of the head slightly concave. Pectoral fin as long 

 as the head, extending nearly to, and sometimes even to, the 

 origin of the anal. Caudal fin truncate or scarcely emarginate, 

 with the corners i-ounded, or with the ujDper angular and the 

 lower rounded, scaly at the base. The spinous dorsal fin rather 

 low, the length of the eighth spine being about one third of that 

 of the head. Gill-rakers of the outer branchial arch from 15 to 

 17 on the whole arch, or from 11 to 12 on its lower portion. 

 Coloration uniform, or with six very indistinct cross-bands ; 

 operculum and dorsal fin with the usual black spot. 



Total length 135 millim. 



Several specimens from Lake Busum-chi. 



Chromis multifasciatus, sp. n. (Plate XXXI.) 



Allied to C. macrocephalus Bleek, 



D. If. A. f. P. 13. L. lat. 28. L. transv. 3/11. 



Scales cycloid, those on the cheek in two series. Teeth very 

 small, in several series, notched, about 36 or 34 on one side of the 

 upper jaw ^ ; those of the lower jaw minute. Mouth small, 

 transverse, the maxillary terminating at some distance in advance 



1 Three series in three species, in two others the third series is rednced to a single 

 scale. 



2 Young specimens of about 70 millim. in length Lave a smaller number, viz. 28 

 or 30, 



