Endemic to Sri Lanka with type locality ‘shaded pools of mountain streams at Akuressa, Southern Province, Sri Lanka, elevation 500 meters’.

It’s known from at least five localities, all of which are located in restricted to Sri Lanka’s ‘wet zone’ in the southwest of the island, with records exis…

This fish was collected for the aquarium trade during 2012 but its identity has not yet been established.

Schistura is the most species-rich genus among nemacheilid loaches with some 190 members and it continues to grow with over 100 having be…

This fish was collected for the aquarium trade during 2012 but its identity has not yet been established.

The fish in our images were obtained at an unspecified locality in the Garo Hills, these for…

At the type locality of the congener S. lixianjiangensis sympatric species included Balitora kwangsiensis, Glyptothorax quadriocellatus, Garra orientalis, Hemibagrus pluriradtus, Poropuntius huangchieni, Pseudecheneis paviei,…

This species is variable in terms of colour. Large adults may be bright green, orange or barred but are apparently capable of changing from barred to plain in just a few seconds.

These different forms have been recorded in the same natural habitats, and some individuals also possess prominent nuptial tubercules covering much of the body.

This species’ conservation status clearly precludes its suitability as an aquarium fish so it’s included here for reasons of interest only. It’s protected by Thai national law and illegal to remove from its habitat.

Species exhibiting morphological, physiological or behavioral adaptations to a subterranean existence are often referred to as troglomorphic.

Can be told apart from congeners by its colour pattern which consists of 8-11 closely-set, narrow dark bars in the anterior part of the body and 5 wider bars in the posterior part. It also possesses prominent dorsal and ventral adipose crests on the caudal peduncle and 9½ branched dorsal-fin rays.

Type locality is ‘Eastern Himalayas; small streams below Darjeeling and Sikkim, India’, and this species is only known with certainty from upland parts of Assam, Sikkim, Arunachal Pradesh and West Bengal states in northern India.

Records from Nepal apparently require confirmation while it may also occur in Bhutan.

Type locality is ‘Tham [=cave] Phra Sai Ngam, about 200 meters from entrance, Thung Salaeng Luang National Park, Phitsanulok Province, Thailand, 16°37’22″N, 100°39’47″E’, and this species is endemic to the Tham Phra Sai Ngam cave system.

Tham Phra Sai Ngam is a limestone cave system about 1.7 km long and containing a subterranean stre…

It can be distinguished from congeners by the following combination of characters: caudal peduncle deep, ≥ the deepest part of the remainder of the body; no dorsal or ventral skin crests along the caudal peduncle; caudal-fin deeply forked, the outermost principal rays in the upper and lower lobes more than twice the length of the innermost: suborbital flap in males present; a well-developed suborbital groove in females; 6–8 very regular bars along the flank.