Bharatapuzha

This species is traded under several names including 'royal danio', 'blue-spotted hill trout', and 'blue-dotted mirror fish'. It can be distinguished from congeners by possessing a single row of bluish-green spots along the length of the body, white margins on the dorsal and anal fins, 37-38+1 lateral line scales, and fleshy rudi...

This species is traded very occasionally, sometimes under the alternative vernacular names of 'river baril, 'river carp-baril', or 'striated hill trout'. It can be told apart from congeners by the following combination of characters: 1 pair of minute rostra...

An obligate dweller of shallow, fast-flowing, highly-oxygenated headwaters and minor tributaries characterised by stretches of riffles and runs broken up by pools or cascades in some cases. Substrates are normally composed of smaller rocks, sand and gravel with jumbles of boulders, and whil...

Wild examples are rarely-seen in the aquarium hobby although selectively-bred ornamental strains are widely-available for which care is identical. These are normally traded as 'red' or 'yellow' chromide and have a solid yellow-orange colour pattern with no dark elements. It exhibits a widespread sympatry with the con...

It can be distinguished from other members of the genus by the following characters: lateral line absent or perforating only 2-5 scales; pharyngeal teeth hooked; body size small, not exceeding 30 mm SL; body depth less than 25 % SL; colour pattern comprising a dark bluish lateral stripe extending from the eye to the caudal peduncle, typically, but not always, forming 2-5 circular spots along its length.

It can be distinguished from other members of the genus by the following characters: dark longitudinal stripe on body, extending from eye to caudal peduncle; scattered tubercles present on lower jaw; 14½-16½ branched anal-fin rays; pelvic-fin long, reaching beyond anus.

This species has become an extremely popular aquarium fish since it first appeared in the ornamental trade during the late 1990s, and it has been sold under various names including 'Denison's barb', 'denisoni barb', 'Denison's flying fox', 'rose line shark', 'bleeding-eye barb', 'red flash barb', and 'Indian flasher barb'. In India it is known locally as 'Miss Kerala' and 'Chorai Kanni' ( literally 'bleeding eyes').