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Show 1893.] FISHES F R O M BRITISH C E N T R A L AFRICA. 623 CHROMIS TETRASTIGMA, sp. n. (Plate LIV. fig. C.) D. j^. A. g. L. lat. 30. L. transv. •,-§. Teeth distinctly bicuspid, brown at the tip, the inner cusps being larger than the outer ; from twenty-eight to thirty-two on each side of the outer series of the upper jaw. Scales below the eye in three series. In a specimen 4 | inches long the diameter of the eye exceeds the width of the praeorbital, the depth of the scaly portion of the cheek, and the width of the interorbital space, which is flat. The angle formed by the praeopercular limbs is nearly a right one. The height of the body is rather more than the length of the head, which is one third of the total (without caudal). The length of the last dorsal spine is two fifths of that of the head. Pectoral fin extending to the origin of the anal. The upper and lower caudal rays covered with scales. Scales smooth. A series of four large black spots on the body-the first on the operculum, the second on the lateral line opposite to the ninth and tenth dorsal spines, the third on the beginning of the lower lateral line, the fourth on the root of the caudal fin. Vertical and ventral fins blackish, the dorsal with numerous ocelli. Several specimens, of which the largest is 4| inches long, are sent from Zomba and from Fort Johnston. CHROMIS CALLIPTERUS, sp. n. (Plate LV. fig. B.) D. ~. A. f. L. lat. 27-28. L. transv. -=^- Teeth distinctly bicuspid, the cusps being short, subequal, and brownish ; from twenty-seven to thirty-tw-o (in very young specimens twenty-two) teeth on each side of the outer series of the upper jaw. Scales below the eye in three series. In a specimen h\ inches long the diameter of the eye equals the width of the praeorbital and of the interorbital space, but is a little less than the depth of the scaly portion of the cheek. The angle formed by the praeopercular limbs is a right one. The height of the body is rather more than the length of the head, which is one third of the total (without caudal). The longest dorsal spine is the last and rather less than one half of the length of the head. Pectoral fin extending to the origin of the anal; caudal more or less scaleless. Scales roughened, with minute projections on the margin. Body dark-coloured, with the vertical fins blackish, the anal being ornamented by a series of large milky-white ocelli from two to four in number ; in our largest specimen also the dorsal fin is ornamented with round light-coloured spots. A black band running from the eye to the angle of the mouth seems to be constant. The largest specimen is 5 | inches long, and was sent by the Rev. J. A. Williams ; smaller specimens from Zomba are in the Johnston collection. |
