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  • Ageneiosus lineatus
Jump to next section Cat-eLog Data Sheet
Scientific Name Ageneiosus lineatus  Ribeiro, Rapp Py-Daniel & Walsh, 2017
Common Name
Type Locality Rio Negro, Rio Jaú, Novo Airã, Amazonas, Brazil.
Pronunciation ah genie OH sus
Etymology Ageneiosus, from the Greek a, meaning without and genias, meaning beard in reference to the apparent lack of barbels. In fact, catfish of this genus have very short maxillary barbels that are almost indistinguishable to the human eye. 
Jump to next section Species Information
Identification This species is commonly misidentified as A. vittatus. This species has a much more flattened head (A. vittatus' head looks more rounded like A. magoi). This specioes lacks the typical higher contrast mottled colouration of A. vittatus (similarity in pattern is said to be superficial) and lacks the two very prominent caudal fin spots (one on each lobe) of A. vittatus.
Sexing Like all Auchenipterids, males have a genital papilla. Moreover, sexually active males get an enlarged and slightly curved dorsal spine and thickened barbels, that are used to clasp the female. After the breeding season, the dorsal spine and the barbels grow back to their normal sizes.
General Remarks One of the smaller ageneiosids.
Jump to next section Habitat Information
IUCN Red List Category Not Evaluated
Jump to next section Husbandry Information
Breeding Unreported in the aquarium.
Breeding Reports There is no breeding report.
Jump to next section Further Information
Reference Journal of Fish Biology, pp 40, Fig. 15.
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Last Update 2019 Nov 20 13:25 (species record created: 2001 Nov 05 00:00)