. Bonn zoological bulletin. Zoology. Fig. 4. A) Male of Callopanchax occidentalis, Malai, Sierra Leone, collection locality SL 03/11 (= SL 93/54). B) Female of Callopanchax occidentalis, Malai, Sierra Leone, collection locality SL 03/11 (= SL 93/54).. Fig. 5. A) Male of Callopanchax monroviae, aquarium strain from Paynesville, Liberia, collection locality L 97, red form. B) Male of Callopanchax monroviae, aquarium strain from Pay- nesville, Liberia, collection locality L 97, blue form. C) Female of Callopanchax monroviae, aquarium strain from Paynesville, Liberia, collection locality L 97. and

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. Bonn zoological bulletin. Zoology. Fig. 4. A) Male of Callopanchax occidentalis, Malai, Sierra Leone, collection locality SL 03/11 (= SL 93/54). B) Female of Callopanchax occidentalis, Malai, Sierra Leone, collection locality SL 03/11 (= SL 93/54).. Fig. 5. A) Male of Callopanchax monroviae, aquarium strain from Paynesville, Liberia, collection locality L 97, red form. B) Male of Callopanchax monroviae, aquarium strain from Pay- nesville, Liberia, collection locality L 97, blue form. C) Female of Callopanchax monroviae, aquarium strain from Paynesville, Liberia, collection locality L 97. and a more reddish brown or copper to golden body colour with blue only on ventral side. Exceptions are populations with rare blue males in C. occidentalis and, if valid, C. huwaldi, which show the same pattern as the 'typical' form but lack orange and yellow pigments, but not the red pig- mentation and the dark vertical stripes or blotches on pos- terior side (e.g. Berkenkamp & Etzel 1980; Eberl 1999, pictures of C. occidentalis from Mabeimah on p. 65; Roloffl976). Large males of C. sidibei show only a slightly rugged anal and dorsal fin border and rounded or slightly pointed fin tips versus more pronounced rugged fin borders in most C. occidentalis and C. toddi, especially the posterior tip of the anal fin, which can show filamentous extensions. Females of C. sidibei can be distinguished from C. occi- dentalis and C. toddi females by mid-laterally blue to blue- green coloured scales and the absence of the dark brown vertical stripes or blotches, similar as in males versus blue to blue-green coloured scales only on anterior side, often with short vertical dark blotches dorsally on side. They are distinguished from females of C. monroviae by their pigmentation pattern of red horizontal stripes with broad blotches versus more regular horizontal rows of small red dots and the absence of metallic blue to blue-green coloured scales on side in C. monroviae. Description. See Fig. 2A