This is the largest family of catfishes in Asia
with around 100 species known.
There is an adipose fin present (confluent with
caudal in some genera and consisting of a small
spine in the elongate Sisor); dorsal
fin base short, fin with or without a spine,
adhesive apparatus in thoracic region present
or absent; four pairs of barbels (however, the
monotypic Sisor has one maxillary pair
and five pairs on the lower jaw). They are not
too well known to aquarists as they are only
sporadically exported. The most common being
the genus, Gagata, Bagarius
and Glyptothorax. Known collectively
as "hill stream catfishes" due to
many of them being found in fast flowing rivers.
The Sisorids vary in body shape and are probably
the hardest family for the aquarist to identify.