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Haplochromis vonlinnei
''Haplochromis vonlinnei'' is a species of cichlid endemic to Lake Victoria. It is greyish in color with a distinct mid-lateral band, and a rather slender shape. It feeds mainly on smaller fish. This species can reach a length of SL. The population of the species has declined due to the introduction of the Nile perch in the 1950s. It has not been recorded since 1980 and the IUCN lists it as "Critically Endangered" and considers it may already be extinct. This fish is named in honour of the Swedish naturalist, Carl Linnaeus.
==Description==
''Haplochromis vonlinnei'' is a moderate-sized, slender cichlid with an acute snout, slightly protruding lower jaw and curved teeth. It is a greyish color with a narrow, intermittent blackish dorsal-lateral band and a broader, more distinct mid-lateral band. The flanks are yellowish and the belly white. In the male, the anal fin is grey with two to four bright orange circular spots with thin white rims (egg dummies). In the female, the anal fin is yellowish with two darker yellow spots. ''Haplochromis vonlinnei'' ranges in size from .〔
Among other fish in the genus ''Haplochromis'' found in Lake Victoria, it is similar in shape to ''H. pyrrhopteryx'' but differs in colouring as that species lacks a mid-lateral band. It also resembles ''H. altigenis'' in morphology, but that species has a differently shaped head and less-curved teeth.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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