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108 On Two new Freshwater Fishes. XIX. — Descriptions of Tioo new Freshwater Fishes discovered hy Dr. W. J. Ansorge in Mossamedes, Angola. By G. A. BOULENGER, F.R.S. Labeo Ansorgii. Body strongly compressed^ its depth equal to length of head and contained 4 times in total length. Head once and § as long as broad ; snout broad, truncate, feebly projecting, beset with conical horny tubercles ; eye nearly perfectly lateral, its diameter 4 times in length of head and once and | in iuterorbital width ; width of mouth, with lijis, about half that of head j rostral flap not denticulated ;, lips bordered with rounded papilla3, tlieir inner surface with numerous transverse plicae ; two barbels on each side, anterior ^, poste-rior f diameter of eye. Dorsal IV 10, with concave upper border, a little nearer root of caudal than end of snout, longest ray slightly longer than head. Anal III 5, nearly reaching root of caudal. Pectoral nearly as long as head, not reaching base of ventral, which is below middle of dorsal. Dorsal deeply forked, with acutely pointed lobes. Caudal peduncle slio-htly longer than deep. Scales 36 yl, 4 between lateral line and root of ventral, 16 round caudal peduncle. Silvery, back brownish. Total length 65 mm. A single specimen from shallow swamps at Dongwenna. A very distinct species, to be placed betwoeu L. barbatus, Blgr., and L. capensis, A, Smith. Paralilapia angusticeps. Depth of body about 3 times in total length. Head very strongly compressed, 2|i to 3 times in total length; lower jaw projecting ; prsemaxiUary processes very long, extending to between the eyes ; snout pointed, twice as long as the eye in the adult (not' longer than the eye in the young) ; eye 3^ (young) to 5 times in length of head, its diameter at least equal to iuterorbital width ; mouth very oblique, extending to below anterior border of eye; teeth in 3 or 4 series, outer largest ; scales on cheek small, in 7 to 9 series ; large scales on the opercle. Gill-rakers short, 11 or 12 on lower part of anterior arch. Dorsal XV-XVI 14-16 ; spines slightly increasing in length to the last, which measures I to g length of head. Anal 111 11-13 ; third spine stronger and as long as or a little shorter than last dorsal. Pectoral ? to | length

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Descriptions of two new freshwater fishes discovered by Dr. W. J. Ansorge in Mossamedes, Angola

George A Boulenger
Annals and Magazine of Natural History (7) 20: 108-109 (1907)

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