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  • Batasio spilurus
Down arrow Cat-eLog Data Sheet
Scientific Name Batasio spilurus  Ng, 2006
Common Name
Type Locality Assam, Dibrugarh District, about 27°29'N, 94°54'E, India.
Pronunciation bah tah see oh - spy lure us
Etymology The genus name comes from the local (Bengali) name of the fish (batasio or batashi). From the Greek spilos, meaning spot, and ouros, meaning tail, in reference to the distinct spot at the base of the caudal peduncle.
Down arrow Species Information
Size 55mm or 2.2" SL. Find near, nearer or same sized spp.
Identification The bagrid genus Batasio Blyth comprises of small, laterally compressed catfishes distributed in South and Southeast Asia, diagnosed from its confamilials in having large sensory pores on the head, a narrow mental region, a pair of posteriorly-directed processes on the anterior part of vomer, a transversely-elongated bar-like entopterygoid, and the metapterygoid in close contact with the quadrate but free from the hyomandibular (Mo, 1991).

Batasio spilurus n. sp. can be distinguished from all congeners in having a short adipose-fin base (12.6–12.8 vs 14.5–33.3% LS) and more slender caudal peduncle (5.7–6.2 vs 6.7–11.8% LS). It further differs from all congeners except B. pakistanicus and B. tengana in having a slender body (12.6–13.6 vs 15.8–23.9% LS). It can be further distinguished from B. pakistanicus in the pectoral fin rays not reaching (v. reaching) the pelvic-fin origin, and from B. tengana in having a wider head (16.4–16.5 vs 12. 5–14.5% LH), the presence of a distinct black triangular spot at the base of the caudal peduncle (vs spot very diffuse or absent), and a sharper snout when viewed laterally.
Sexing Not known.
Down arrow Habitat Information
Distribution Known from the Brahmaputra River drainage in the vicinity of Dibrugarh and in the Siang River in Arunachal Pradesh.
Indian waters, North Eastern India Waters, Padma, Jamuna, Brahmaputra (click on these areas to find other species found there)
Indian waters, North Eastern India Waters, Padma, Jamuna, Brahmaputra, Siang (click on these areas to find other species found there)

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Temperature 20.0-25.0°C or 68-77°F (Show species within this range)
Other Parameters The water should be cool and heavily oxygenated with a good flow as these fish occur in hill streams.Anything above 25 C will hamper long term survival as these fish tend to burn away at higher temperatures.
Down arrow Husbandry Information
Feeding Is known to take processed food but prefers live food like blood worms, frozen brine shrimp etc. Needs sometime to gradually get weaned off live foods. Spot feeding will help in case tank mates are voracious feeders.
Furniture Fine sand for the bottom and smooth pebbles / rocks. Cover / hiding spots can be created with either plants or wood.
Compatibility A peaceful species suitable for a hillstream biotope.
Suggested Tankmates Peaceful Cyprinids like Puntius or Oreichthys and Balitorine loaches like Schistura or Nemacheilus species.
Breeding Unreported in the aquarium.
Breeding Reports There is no breeding report.
Down arrow Further Information
Reference Journal of Fish Biology v. 68 (suppl. A), pp 110, Fig. 5.
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Last Update 2019 Oct 26 06:33 (species record created: 2011 Sep 23 08:40)