All Fishes Akysidae Akysinae Akysis

  • Akysis hendricksoni
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Scientific Name Akysis hendricksoni  Alfred, 1966
Common Name Hendrickson's Catfish
Type Locality Trengganu River at Kuala Brang, Trengganu, Malaysia.
Pronunciation ack EYE siss - hen DRICK sonn eye
Etymology From the Greek a, meaning without and kystis, meaning bladder; in reference to the lack of a swimbladder. Named after J. R. Hendrickson.
Hop to next section Species Information
Size 49mm or 1.9" SL. Find near, nearer or same sized spp.
Identification Fishes of the genus Akysis are small species (typically not larger than 50mm SL) with tuberculate skin and a cryptic color pattern generally consisting of yellow patches or bands on a brown body. They have a distribution ranging from the Irrawaddy River drainage to the west, the Citarum River drainage to the east and south and the Lancanjiang (upper Mekong) drainage to the north.

Many species of Akysis are not easy to identify, but this is one of the few species that have been imported into the aquarium trade.
The contrasting pattern of chocolate brown and pale yellow helps to distinguish this species, but is by no means unique to it.
Distinguished from all its congeners by the following combination of characters: presence of 4-6 serrae on posterior edge of pectoral spine; head length 17.7-26.5% SL; head width 25.4-28.7% SL; body depth at anus 13.0-17.0% SL; depth of caudal peduncle 8.1-10.1% SL; interorbital distance 43-64% HL; length of nasal barbel 55-79% HL; length of maxillary barbel 102-167% HL; and caudal fin deeply emarginate
Hop to next section Habitat Information
Distribution Asia: Peninsular Malaysia and Peninsular Thailand.
Pacific, Malaysia Waters, Peninsular Malaysia Waters, Terengganu (click on these areas to find other species found there)
Pacific, Malaysia Waters, Peninsular Malaysia Waters, Endau (click on these areas to find other species found there)

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IUCN Red List Category Least Concern, range map and more is available on the IUCN species page. Last assessed 2018.
pH 6.4 - 7.2
Temperature 16.0-22.0°C or 60.8-71.6°F (Show species within this range)
Other Parameters Best kept in a well-oxygenated tank, preferably with some current.
Hop to next section Husbandry Information
Feeding Readily feeds on most foods, but live or frozen food is preferred. In the wild, the diet consists primarily of small invertebrates, particularly small atyid shrimps of the genus Caridina.
Furniture Rocks or driftwood to partially deflect the current and for the fish to hide in. Some vegetation or leaf litter also ideal.
Compatibility Ideal tankmates include balitorine loaches such as Homaloptera, fast-swimming cyprinids such as Danio or Barilius, and smaller mastacembelids.
Breeding Not reported.
Breeding Reports There is no breeding report.
Hop to next section Further Information
Reference Copeia 1966 (no. 3), pp 467, Fig. 1.
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Last Update 2020 Sep 19 05:37 (species record created: 2003 Feb 21 00:00)