All FishesSiluridaeOmpok

  • Ompok pinnatus
Hop to next section All Fishes Data Sheet
Scientific Name Ompok pinnatus  Ng, 2003
Common Name Long-fin Glass Catfish
Type Locality Fishing lot 9 in second channel east of town, Tonle Sap at Kompong Chhnang, Cambodia.
Pronunciation Awm pok - peen ah tuss
Etymology The etymology of Ompok is unclear. It is believed to be a corruption of the Indonesian name for mid-sized silurid catfishes, limpok. From the Latin pinnatus, meaning feathered or plumed. In reference to the very long dorsal fin and barbels.
Hop to next section Species Information
Size 81mm or 3.2" SL. Find near, nearer or same sized spp.
Identification The catfish genus Ompok La Cepède, 1803, consists of medium-sized silurid fishes found in inland waters throughout South and Southeast Asia. The genus is traditionally diagnosed by the presence of a short dorsal fin with 4 rays, strongly forked caudal fin, subcutaneous eye that is set immediately posterior to the mouth rictus and two patches of palatal teeth (Weber & de Beaufort, 1913). Bornbusch (1995) showed that Ompok, as currently understood, is probably paraphyletic.

Like O. eugeneiatus, easily distinguished from congeners by the very long barbels. Ompok pinnatus differs from O. eugeneiatus in having a deeper caudal peduncle, shorter mandibular barbels and fewer anal-fin rays.
Sexing Males are more slender and have strong serrations on the posterior edge of the pectoral spine (females lack these serrations).
Hop to next section Habitat Information
Distribution Southeast Asia: Chao Phraya and Mekong River drainages in Thailand and Cambodia
Mekong (click on these areas to find other species found there)
Thailand Waters, Chao Praya (click on these areas to find other species found there)

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IUCN Red List Status Data Deficient
pH 6.0 - 7.0
Temperature 22.0-28.0°C or 71.6-82.4°F (Show species within this range)
Hop to next section Husbandry Information
Feeding Readily feeds on live or frozen foods and other prepared foods such as pellets. May eat very small fishes.
Furniture Provide hiding spaces in the form of driftwood or PVC pipes as well as plenty of vegetation. Prefers an area of open water when active.
Compatibility A relatively peaceful species that is compatible with most fish. Not safe with very small fishes.
Breeding Unreported.
Breeding Reports There is no breeding report.
Hop to next section Further Information
Reference Proceedings of the Biological Society of Washington v. 116 (no. 1), pp 48, Fig. 1.
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Last Update 2019 Sep 28 02:52 (species record created: 2003 Oct 23 00:00)