Batasio

Batasio
Batasio fasciolatus
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Siluriformes
Family:	Bagridae
Genus:	Batasio Blyth, 1860

Batasio is a genus of catfish of the family Bagridae. These small fish are found in fast-flowing hillstreams throughout South and mainland Southeast Asia.

Batasio was first described by Edward Blyth in 1860 with Batasio buchanani (a needless renaming of Batasio batasio) designated as type.B. pakistanicus, described in 1989, is tentativelly placed in Batasio, but its generic placement is questionable.

There are currently 18 recognized species in this genus:

Batasio species are generally found throughout South and mainland Southeast Asia.B. affinis is found in Myanmar.B. fluviatilis is found in Northern Malay Peninsula.B. tigrinus is also recorded from Thailand.B. dayi originates from the Salween and Irrawaddy River drainages in Myanmar.B. elongatus is found in southwestern Myanmar.B. macronotus originates from eastern Nepal.B. pakistanicus is found in the Indus River.B. batasio also originates from northern India where it shares its habitat with Mystus vittatus.B. fasciolatus is known from the Tista River drainage, a tributary of the Brahmaputra River.B. merianiensis is found in the Brahmaputra River drainage.B. sharavatiensis originates from the Sharavati River in Uttara Kannada, Karnataka.B. spilurus is known from the Brahmaputra River drainage in the vicinity of Dibrugarh.B. tengana is known from the Ganges and the Brahmaputra River drainages; it is apparently restricted to upper reaches of larger rivers.B. travancoria is distributed in the Chittar, Kallada and Pamba Rivers in southern Kerala and is considered a rare species.

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