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Ageneiosus akamai Ribeiro, Rapp Py-Daniel & Walsh, 2017 |
| Family: | Auchenipteridae (Driftwood catfishes), subfamily: Auchenipterinae | |||
| Max. size: | 17.41 cm SL (male/unsexed) | |||
| Environment: | pelagic; freshwater | |||
| Distribution: | South America: Brazil. | |||
| Diagnosis: | Anal soft rays: 31-37; Vertebrae: 46-48. This species can be distinguished by the following set of characters: D I,6; A 31-37; P I,11-13 (mode 12); GR 14-18 (mode 16) on anterolateral margin of first branchial arch; 46-48 total vertebrate; caudal fin deeply forked, with pointed lobes; reduced and ossified gas bladder; and by having epaxial musculature covering the tympanic region. Colouration: dark uniform dorsolateral stripe extending from posterior region of head to caudal-fin base; dark blotch of snout expanded posteriorly on top of head above frontals and nuchal plates; dorsal area of snout almost completely dark; pectoral and pelvic fins hyaline or dark, with many melanophores; anal and caudal fins hyaline and yellowish; dorsal fin often has melanophores concentrated on distal tips of first branched rays (Ref. 124585). | |||
| Biology: | ||||
| IUCN Red List Status: | Not Evaluated (N.E.) Ref. (130435) | |||
| Threat to humans: | harmless | |||