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$Mt\.lt\.WI SALTSâ¢ - The Cichlid Fishes of Lake Malawi, Africa$

102 Dr. Ethelwynn Trewavas onalways more than ) length of head), narrower interorbitalregion (6 to 74 in length of head, as against 5 to 6Q), andsomewhat longer prsmaxillary pedicels. The fin-ray countsof the dorsal fin resemble those of the sample of nine ratherthan those of the more typical specimens.Nine specimensand Nkudzi.Total ofdorsal rays.Typical H. woodifrom the south.Northernspecimens.from betweenFt. Johnston25 1 0 026 40 3 227 16 10 728 1 1 077. Haplochromis modestus (Gtint,lier).Haplochromis modestus Regan, t. c. p. 701.Known only from the type, 150 mm. in total length.Very near H. woodi, from which it is distinguished by thelarger mouth and by the prsmaxillary pedicels, which extendnearly to between the orbits. Also in specimens of H. woodiof this size the eye is usually larger and the interorbitalwidth less.78. Haplochromis pholidophorus, sp. n.A single specimen, 105 mm. in total length, from Vua.Snout longer than postorbital part of head. Teeth conical,in 3 series in upper jaw, 2 in lower, 50 in outer series of upperjaw. 11 gill-rakers on lower part of anterior arch. 32 scalesin a longitudinal series. Dorsal XVI 12. Anal I11 10.79. Haplochromis tetrastigma (Giinther). (Fig. 9.)Haplochromis tetmtigma Regan, t. e. p. 699.Seventy-four specimens, 44 to 136 mm. in total length,from both ends of the lake.The dentition of the lower jaw in many specimens of thisspecies is like that of Lethrinops, although in others thereis a short single series posteriorly. It is possible that thisspecies is in a transitional stage between the two genera.80. Haplochromis heterodon, sp. n.Eleven specimens, 86 to 128 mm. in total length, fromDeep Bay and Monkey Bay.Teeth in 3 or 4 series, inner tricuspid, outer bicuspid, orsome tricuspid, or, in larger specimens, simple. 11 to 14gill-rakers on lower part of anterior arch. 32 or 33 scalesin a longitudinal series. Caudal peduncle as long as deep ora little longer.
the Cichlid Fishes of Lake Nyasa. 103A fish from Monkey Bay has 9 gill-rakers on the lowerpart of the anterior arch on one side, 10 on the other, butotherwise cannot be separated from this species.Pig. 9.Haplochromis tetrmtigma. Dentition of lower jaw.81. Haplochromis tetraspilus, sp. n.Ninety-six specimens, up to 156 mm. in total length, fromthe south end of the lake.Mouth small ; maxillary ending below nostril or a littlebehind. Teeth in 3 or 4 series, outer bicuspid, inner tricuspid.30 to 32 scales in a longitudinal series. Dorsal XVI-XVII9-11. Anal 111 9-10.82. Haplochromis chrysogaster, sp. n.Three specimens, 150 to 175 mm. in total length, fromKaronga and the south-west arm of the lake.
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