Chrysichthys walkeri Günther, 1899
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Family:  Claroteidae (Claroteid catfishes), subfamily: Claroteinae
Max. size:  11.5 cm SL (male/unsexed)
Environment:  demersal,
Distribution:  Africa: endemic to the Pra basin in Ghana; other reports from West Africa unconfirmed (Ref. 7324, 57126). Identifications of C. walkeri in Lower Guinea appear to be misidentifications of mature male of C. auratus, or of C. aluuensis or C. thysi (Ref. 81642).
Diagnosis:  Dorsal spines (total): 2; Dorsal soft rays (total): 6; Anal spines: -0. Diagnosis: nasal barbell long, reaching to anterior margin of orbit; first branched dorsal-fin ray longest, but never filamentous; adipose fin long, its base longer than that of dorsal fin; 9 branched rays in pectoral fin; 12-13(15) gill rakers on lower limb of first gill arch (Ref. 57126). Description: nasal barbels present; very short first dorsal spine; well developed second spine, weakly denticulate along posterior margin; pelvic fin with 1 unbranched and 5 branched soft rays; anal fin with 4 unbranched and 7-9 branched soft rays (Ref. 57126). Despite its small size, dimorphism between immature and mature specimens is clearly evident (Ref. 57126). Coloration: no information on live specimens; preserved specimens with back and head uniformly dark brown, belly lighter (Ref. 57126).
Biology: 
IUCN Red List Status: Endangered (EN); Date assessed: 30 April 2006 (B1ab(iii)+2ab(iii)) Ref. (120744)
Threat to humans:  harmless
Country info:   
 

Entered by: Binohlan, Crispina B. - 06.03.91
Modified by: Musschoot, Tobias - 01.09.14
Checked by: Boden, Gert - 18.03.08

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