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Chrysichthys thysi Risch, 1985 |
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photo by
RMCA / Mark Hanssens |
| Family: | Claroteidae (Claroteid catfishes) | |||
| Max. size: | 30 cm SL (male/unsexed) | |||
| Environment: | demersal; freshwater | |||
| Distribution: | Africa: known only from the Ogowe and Nyanga Rivers, Gabon (Ref. 81642). | |||
| Diagnosis: | Dorsal spines (total): 2-2; Dorsal soft rays (total): 6-6; Anal soft rays: 13-15. Diagnosis: snout length larger than 75% of mouth width; dorsal spine long, 17.2-22.9% HL, less than 6 times in SL; dorsal fin base length 21.3-31.5% HL; 13-15 soft rays in anal fin (Ref. 81642). Description: premaxillary toothband wide (width 33.2-45.2% HL), mouth wider (width 42.33-55.6% HL) than snout length (30.7-42.9% HL); vomerine and palatine dentition strongly developed, even in juveniles; pectoral fin with 9 (rarely 10) soft rays; anal fin with 13-15 soft rays, 4-5 unbranched, 8-10 branched; nasal barbel long (length 16.2-36.5% HL)(Ref. 81642). Coloration: preserved specimens: head and dorsum dark brown, ventrum creamy white (Ref. 81642). | |||
| Biology: | ||||
| IUCN Red List Status: | Least Concern (LC); Date assessed: 16 February 2009 Ref. (130435) | |||
| Threat to humans: | harmless | |||