臀鳍软条: 31 - 37; 脊椎骨: 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).
Life cycle and mating behavior 成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Ribeiro, F.R.V., L.H. Rapp Py-Daniel and S.J. Walsh, 2017. Taxonomic revision of the South American catfish genus Ageneiosus (Siluriformes: Auchenipteridae) with the description of four new species. J. Fish Biol. 90:1388-1478. (Ref. 124585)