Taxonomy & naming
Puntigrus navjotsodhii was described by Pinder and Pinder in 2012 and placed in the genus Puntigrus, which was established to accommodate a cluster of tiger-barb-like cyprinids previously carried in the broad, polyphyletic genus Puntius. The reorganisation of Asian small barbs following Pethiyagoda et al. (2012) and Kottelat (2013) moved many species out of Puntius into a series of new genera; Puntigrus was erected for the banded barbs most closely allied to the tiger barb complex. The valid combination Puntigrus navjotsodhii (Pinder & Pinder, 2012) is recorded in the Catalog of Fishes (Eschmeyer, CAS), which is the authority for valid names used here.
The species is a member of the tetrazona species group — a cluster of banded barbs that includes P. tetrazona (the tiger barb, Sumatra and Borneo), P. anchisporus (Borneo), and P. partipentazona (Indochina). Its precise placement within that group and full synonymy are not yet well established in the accessible literature, and detailed data on its type locality remain sparse.
Morphology
No detailed morphological description is available in the accessible literature for this species. As a member of Puntigrus, it is expected to share the deep-bodied, laterally compressed form typical of the group, and likely bears some degree of banding similar to other tiger-barb complex members. Precise meristic counts, colouration, and size data are not confirmed from available sources.
Data for this species are sparse; the article will be updated as primary-description data become more widely accessible.
Habitat
The specific native habitat of Puntigrus navjotsodhii is not described in the accessible literature. Members of the genus Puntigrus generally inhabit lowland rivers, forest streams, and their quieter margins in tropical Southeast Asia, favouring soft to moderately hard, slightly acidic to neutral water with warm temperatures broadly in the range of 75–82 °F.
Without confirmed type-locality or distributional data for this species, specific habitat parameters cannot be stated here. Data for this species are sparse; readers are directed to primary-description resources for confirmed information.
Feeding
No dietary data specific to Puntigrus navjotsodhii are available in the accessible literature. Members of Puntigrus and the broader barb clade are generally opportunistic omnivores, taking small invertebrates, insect larvae, algae, and organic detritus from the substrate and water column.
In the aquarium, closely related barbs accept a wide range of standard foods including quality flakes, small pellets, live and frozen bloodworm, brine shrimp, and daphnia. Feeding behaviour specific to this species remains unrecorded.
Mating
Specific observations of courtship behaviour in Puntigrus navjotsodhii have not been published in the accessible literature. All Puntigrus species are egg-scattering, non-guarding spawners. Courtship in the genus follows a pattern in which a driving male pursues a gravid female through fine-leaved plants or over the substrate, the pair pressing together briefly as eggs and milt are released simultaneously.
No pair bond is formed, and no territory is held beyond a brief period of courtship activity. Adults show no recognition of or attachment to eggs after spawning.
Breeding
Puntigrus navjotsodhii has not been reported as bred in captivity in the accessible literature. By analogy with the rest of the genus, it is an egg-scatterer that releases adhesive eggs over fine-leaved plants or onto the substrate with no parental care; adults will eat their own eggs and fry if given the opportunity. Hobbyist accounts of successfully spawning this species are not recorded in available sources.
Data for this species are sparse.
In the aquarium
Puntigrus navjotsodhii does not appear to be established in the aquarium trade and is essentially absent from the hobbyist literature. No aquarium husbandry notes are available from accessible sources.
Data for this species are sparse. Enthusiasts interested in the tiger-barb complex are likely to find P. tetrazona and P. anchisporus better documented and more readily available.
Conservation
Puntigrus navjotsodhii has not been formally assessed by the IUCN Red List. Many recently described, range-restricted barbs from Southeast Asia lack a formal IUCN assessment, and the conservation status of this species is therefore Not Evaluated (NE).
Without confirmed distributional data it is not possible to characterise the specific pressures facing this species. Regional threats to freshwater fishes across Southeast Asia — including deforestation, lowland river modification, dam construction, and water pollution — are well documented and likely relevant to any narrowly endemic member of the region's barb fauna.