Taxonomy & naming
Schistura kalikholaensis was formally described in 2026 by Singh, Mukherjee, Rath and Kosygin, published in Acta Zoologica Bulgarica (the Catalog of Fishes notes the new name dates to the printed edition rather than an earlier online-first posting without ZooBank registration). The type locality is the Kalikhola stream near Latpanchar, a tributary of the Tista River within the Brahmaputra River drainage, Darjeeling District, West Bengal, India, at roughly 896 ft elevation.
It sits in Schistura s.l., the largest genus in Nemacheilidae, with well over 200 species across South and Southeast Asia; Schistura from the eastern Himalayan foothills of India and Nepal form part of this sprawling, taxonomically unsettled assemblage. The full original description — its diagnosis, comparison with related species, and reasoning for a new-species designation — was not accessible for this article, so no further taxonomic detail can be confirmed here beyond the type-locality record.
Morphology
No verified morphometric or meristic data for Schistura kalikholaensis is available for this article; the original description, which would normally supply body proportions, fin-ray counts, and colour pattern, could not be accessed. Presumably, and only presumably, it shares the general Schistura body plan seen across the genus: a slender, elongate, subcylindrical body built for holding position in flowing water, with a flattened underside, barbels around a subterminal mouth, and — as in other true loaches — the small erectile suborbital spine typical of Cobitoidea.
A confirmed maximum size for this species was not located in the available sources; readers should treat any size estimate as unknown rather than assume it matches a related species.
Habitat
The species is known from the Kalikhola stream near Latpanchar, Darjeeling District, West Bengal — a tributary of the Tista River within the Brahmaputra drainage in the eastern Himalayan foothills, at roughly 896 ft elevation. Streams in this part of Darjeeling District descend rapidly off the Himalayan front and are typically clear, cool-to-mild, and fast-flowing over a stony bed, the standard setting for hillstream Schistura across the region — but no water-chemistry or flow data specific to this species has been confirmed.
No other localities have been documented for this species in the sources available; it should be treated as a narrow-range, single-drainage record pending further survey work.
Feeding
No feeding data has been documented for Schistura kalikholaensis. Based on the genus generally, Schistura are benthic micro-predators that forage over gravel and stones for small aquatic invertebrates such as insect larvae, a pattern well established across the family Nemacheilidae — but this is a genus-level presumption, not an observation of this species.
Mating
No courtship, spawning, or sexual-dimorphism data has been documented for Schistura kalikholaensis. Nothing in the sources available describes how or when this species pairs or spawns in the wild.
Breeding
Breeding has not been documented for this species, in the wild or in captivity. Nemacheilid stone loaches as a group are typically egg-scatterers that release eggs over gravel in fast water with no parental care, and S. kalikholaensis is presumed to follow this pattern based on family biology alone — but this has not been confirmed for the species itself, and no aquarium or hatchery record exists.
In the aquarium
Schistura kalikholaensis has no history in the aquarium trade, and detailed keeping information is not available. Any care guidance would have to be extrapolated cautiously from Schistura and Nemacheilidae generally: cool, clear, well-oxygenated, fast-flowing water over a stone or gravel substrate, and — as in other near-scaleless loaches — caution around copper-based and full-strength medications. This is presumption from genus and family, not a documented care profile for this species.
Conservation
Schistura kalikholaensis has not been evaluated by the IUCN Red List; as a species described only in 2026 from a single small tributary stream, it has simply not yet been assessed, and should be treated as data-deficient in practice.
Darjeeling District's foothill streams face general pressures from land-use change, water abstraction, and sedimentation, but no population trend or threat data specific to this species has been located. There is no evidence of any aquarium trade in this fish.