Download Trewavas (1935) - The Cichlid Fishes of Lake Malawi ...

the Cichlid Fishes of Lake Nyasa. 101Dorsal XVIII 12, Anal I11 10. 38 scales in a longitudinalseries. 13 gill-rakers on lower part of anterior arch.72. Haplochrmis ahli, nom. nov.Haplochromis serranoides (non Regan) Ahl. Sitzungsber. Ges. naturf.Fr. Berlin, July 1926 (1927), p. 64.Nineteen specimens, 115 to 160 mm. in total length, fromboth ends of the lake.The type has been examined by me in Berlin. It is largerthan any of the British Museum specimens, and has, accordingly,a wider interorbital region (nearly length of head).73. Haplochromis pleurospilus, sp. n.A single specimen, 53 mm. in total length, from Lupembesand-bank, in the northern part of the lake.32 scales in a longitudinal series. Dorsal XV 12. Anal 11110.This small fish is probably not closely related to H. ahli.74. Haplochronais auromarginatus (Boulenger), 1908.TGapia auromarginata Boulenger, Cat. Afr. Fish. iii. p. 180, fig. 116(1915).Otopharynx aunmzarginatus Regan, t. c. p. 678.Fifteen specimens, 145 to 240 mm. in total length, fromboth ends of the lake.In the males no spots are visible on the body, and the generalcoloration is much darker thm in females.75. Haplochromis ovatus, sp. n.Three specimens, 130 to 190 mm. in total length, from thesouth end of the lake.76. Haplochromis woo& Regan.Haplochromis woo& Regan, t. c. p. 702, pl. ii.Eighty-one specimens, 115 to 230 mm. in total length,from all parts of the lake.Fifty-eight of these, from the south end of the lake, agreewell with the types. In a very uniform sample of nine specimenstaken together between Fort Johnston and Nkudzithe body is more slender, the eye is rather large (34 to nearly4 in length of head), and the scale-counts differ slightly fromthose of the fifty-eight (33 to 35 in a longitudinal series asagainst 32 to 34 ; 4, rarely 5, between origin of dorsal andlateral line, as against 5 or 6, rarely 4 ; 6 to 8, rarely 5,between pcctoral and pelvic fins, as against 5 or 6, rarely 7).Twenty-throe specimens from the north end of the lake,including all the largest specimens, have a larger eye (diameter