OCR Text |
Show 270 MR. G. A. BOULENGER ON THE [Apr. ^' ClCHLIDiE. 39. HEMICHROMIS FASCIATUS Peters. 40. PSEUDOPLESIOPS SQUAMICEPS, sp. n. (Plate XXX. fig. 1.) Depth of body 3£ times in total length, length of head 3 times. Upper profile of head curved ; snout a little longer than the diameter of the eye, which is contained 3g times in the length of the head and equals the interorbital width; mouth with broad, thick lips, extending to below anterior border of eye; 3 series of teeth in the upper jaw ; occiput and sides of head with large scales; 2 or 3 series of scales on the cheek. 8 gill-rakers on lower part of anterior arch. Dorsal XVII 8 ; spines subequal from the sixth, barely one third length of head ; longest soft rays two thirds length of head. Anal III 6 ; third spine longer than dorsals, two fifths length of head ; soft rays like dorsals. Pectoral about two thirds the length of the head. Ventral about the same length, not reaching the vent. Caudal rounded. Caudal peduncle as long as deep. Scales cycloid, 29 in a longitudinal, 13 or 14 in a transverse series; upper lateral line on 8 or 9 scales, forming an interrupted series, lower on 3 or 4. Pale brownish above, white beneath; a dark horizontal streak on each side of the head, behind the eye; soft dorsal, anal, and caudal fins with numerous transverse series of small dark spots. Total length 65 millim. Two specimens. Distinguished from P. nudiceps by the scales on the head, the shorter dorsal spines, and the interrupted lateral lines. 41. TILAPIA STORMSI, sp. n. (Plate XXX. figs. 2, 2 a.) Teeth in 4 to 7 series, outer deeply notched, inner much smaller and tricuspid; 36 to 60 teeth in the outer praemaxillary series. Depth of body equal to length of head, 3 to 3| times in total length. Snout rather pointed, with straight or slightly convex upper profile, lg to If the diameter of the eye, which is contained 4 to 4^ times in the length of the head and equals the interorbital width ; width of mouth about -| that of the head; maxillary extending to between nostril and eye ; 3 or 4 series of scales on the cheek; large scales on the opercle. Gill-rakers short, some anvil-shaped, 11 or 12 on lower part of anterior arch. Dorsal XVI-XVII 9; last spine longest, about f- the length of the head, about § the longest soft rays. Pectoral rounded, about | the length of the head, widely separated from the anal. Ventral not reaching the vent. Anal III 7; third spine about 1 the length of the head. Caudal rounded. Caudal peduncle as long as deep. Scales with strong marginal denticulation, 30-31 f^j; lateral line g^rj-; scales on the occiput and nape very small. Olive-brown above, some of the scales black at the base; 5 or 6 more or less indistinct dark cross-bands; a blackish |