The type locality is a stream with a mixed substrate of mud and stones which flows swiftly through an area of bamboo forest so is quite well-shaded. At time of collection the water was clear but slightly tannin-stained and sympatric species included Pethia thelys, Puntius sophore, Devario strigillifer, Rasbora daniconius, R. rasbora, Acanthocobitis botia, Notopterus notopterus, plus unidentified species of Oreichthys, Parambassis, Xenentodon, and Mastacembelus.

This species is available in the trade on occasion and has been sold as Danionella sp. 'neon green' or 'flourescent green'. The specific name was inspired by its jaw morphology which according to current knowledge is unique among cypriniform fishes. Both upper and lower jaws contain a series of toothlike odontoid processes; these are only rudimentary in females but in males appear to form rows of teeth of which the front pair is large and fang-like. The upper fangs project th…

Adult size is comparable to B. nigrofasciata, and in the description paper the authors hypothesise that the two are closely-related given they share other features such as similar barbel length (plus some additional merisitic counts), absent lateral line and spotted pelvic fins.

The two are easy to tell apart, however, since in B. tinwini the P+1 stripe is composed of a series of spots (vs. solid), it possesses an indistinct P+2 str…

This fish first became available to hobbyists in 2005 and has also been referred to as Dario sp. ‘pyjamas’ or ‘fire red tiger badis’.

Despite the striking differences in colour pattern it’s officially recognised as a colour form of D. hysginon as per Kullander and Britz (2002) although D. sp. ‘Myanmar’ is now known to have an appreciably larger adult size (S. van der Voort, pers. comm.).

The type locality is located in a hilly area mostly comprising bamboo forest. At time of collection the water was clear, colourless and flowing at a moderate pace over a substrate of rocks and gravel. It was 1-2 metres wide and maximum depth was only 0.5 metres.

Due to the surrounding forest some stretches were shaded and others more open. Sympatric species included…

This species is traded under various names such as ‘red melon Dario’ or ‘flame red Dario’.

Among congeners D. dayingensis is most similar since it differs only in a few meristic counts and by its slightly larger adult size.

D. hysginon can be told apart by possessing 22-24, usually 23, lateral scales (vs. 24-25 in D. dayingensis), 8½ (vs. 9½) scales in the transverse scale row, a…

Like most badids this species is poorly documented and has yet to find significant popularity in the aquarium hobby. It is arguably the most attractive member of the genus and we hope to see it more widely available; the fish in our images representing what is thought to be the only batch exported from Myanmar to date. It is most closely related…

Like most badids this species is poorly documented and has yet to find significant popularity in the aquarium hobby. Within the genus it is most closely-related to B. pyema but the two are unlikely to be confused as B. corycaeus is much the deeper, darker-bodied fish.

Prior to 2002 the family Badidae included just five species of which only B. badis and, to a lesser extent, Badis dario (referred to as B. bengalensis by some sources) were popular in the aquarium hobby. However an extensive rev…

All Mystacoleucus species possess a procumbent predorsal spine orientated towards the head, though it can be difficult to spot with the naked eye. This can become entangled in an aquarium net so care must be taken when handling the fish.

The trait is shared by members of Tor, Spinibarbus and Paraspinibarbus although there exists no strong evidence to suggest that these genera form a monophyletic lineage and it is…

This fish is one of several sometimes imported and sold as Oreichthys cosuatis or O. parvus which has led to considerable confusion. It appears to be an undescribed species and can be most easily identified by the absence of a dark marking in the dorsal-fin of adult males (vs. presence in O. cosuatis and O. parvus) and possession of a large, well-defined black blotch on the caudal peduncle ( vs. absent in O. cosuatis, smaller and less well-defined in O. parvus).