Cat-eLog Right Arrow Siluridae Right Arrow Belodontichthys

  • Belodontichthys truncatus
  • Belodontichthys truncatus
  • Belodontichthys truncatus
Down arrow Cat-eLog Data Sheet
Scientific Name Belodontichthys truncatus  Kottelat & Ng, 1999
Common Name
Type Locality Chao Phraya River, flood-waters 17.5 kilometers north of Ayuthya, Maharaj Province, Thailand.
Pronunciation Bee law dawn tick thees - trunk ah tuss
Etymology From the Greek belos, meaning arrow, odontos, meaning tooth and ichthyos, meaning fish; in reference to the distinctive arrowhead-shaped teeth. The specific epithet comes from the Latin truncatus, meaning cut off; in reference to the short head of this species.
Down arrow Species Information
Size 600mm or 23.6" SL. Find near, nearer or same sized spp.
Identification Distinguished from B. dinema in having a shorter pectoral fin, head and snout.
Sexing Males are more slender and have strong serrations on the posterior edge of the pectoral spine (females lack these serrations).
General Remarks Migrates upstream through the Khone Falls in the Mekong River in June-July with other silurids and enters the flooded forest in July-October, where it feeds heavily on cyprinids of the genus Henicorhynchus.
Down arrow Habitat Information
Distribution Asia: Chao Phraya and Mekong River drainages in Thailand, Laos, Cambodia and Viet Nam.
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 Category Least Concern, range map and more is available on the IUCN species page. Last assessed 2011.
pH 5.6 - 7.0
Temperature 22.0-27.0°C or 71.6-80.6°F (Show species within this range)
Other Parameters Clean water needed. Sensitive to bad water conditions.
Down arrow Husbandry Information
Feeding Obligate piscivores. Does not seem to take any food other than live fish, which they snap up with sudden upward lunges.
Furniture Provide large open areas as this is an actively-swimming fish. Some vegetation for it to hide in during the day will be ideal. They are good leapers, so a tight-fitting, heavy cover for the tank is necessary.
Compatibility Best kept alone, as it will eat any other tankmates able to fit its mouth.
Breeding Not reported. Has been bred for fishery purposes in Thailand.
Breeding Reports There is no breeding report.
Down arrow Further Information
Reference Ichthyological Exploration of Freshwaters v. 10 (no. 4), pp388, Fig. 1.
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Last Update 2020 Sep 24 04:23 (species record created: 2001 Apr 21 00:00)