Aborichthys barapensis, a new species of river loach (Cypriniformes: Nemacheilidae) from Arunachal Pradesh, the eastern Himalaya, India

Main Article Content

P. Nanda
Lakpa Tamang
https://orcid.org/0000-0003-2552-062X

Abstract

A new species of nemachilid loach Aborichthys barapensis, is described based on two adult specimens (91 and 97 mm SL) from the Barap Stream (a tributary of the Brahmaputra River basin) in the southeastern most part of the state of Arunachal Pradesh bordering Myanmar. The new species is distinguished from its congeners in having a narrow black basicaudal bar without a black ocellus on the upper end (vs. present); and in having a very low dorsal and ventral adipose crests (vs. prominent; absent in A. waikhomi). The new species is further distinguished from its congeners by the following combination of characters: body with 24–26 oblique bars along the flank; interspace narrower than bars on body; moderately rounded caudal fin with five distinct black to brown cross bars; vent closer to the caudal-fin base (44.1–45.1 % standard length) than to snout tip.

Article Details

How to Cite
[1]
Nanda, P. and Tamang, L. 2021. Aborichthys barapensis, a new species of river loach (Cypriniformes: Nemacheilidae) from Arunachal Pradesh, the eastern Himalaya, India. Journal of Threatened Taxa. 13, 7 (Jun. 2021), 18800–18808. DOI:https://doi.org/10.11609/jott.5989.13.7.18800-18808.
Section
Communications

References

Barman, R.P. (1984). A new cobitid fish of the genus Aborichthys Chaudhuri (Pisces: Cobitidae) from India. Journal of the Bombay Natural History Society 81(3): 680–683.

Chaudhuri, B.L. (1913). Zoological result of the Abor expedition, 1911–1912. XVIII. Fish. Records of the Indian Museum 8: 243–258.

Chaudhuri, B.L. (1919). Report on a small collection of fish from Putao (Hkamti Long) on the northern frontier of Burma. Records of the Indian Museum 16: 27–288.

Hora, S.L. (1921). On some new or rare species of fish from the Eastern Himalayas. Records of the Indian Museum 22(5): 731–744.

Hora, S.L. (1925). Notes on fishes in the Indian museum. VIII. On the loaches of the genus Aborichthys Chaudhuri. Records of the Indian Museum 27(3): 23–236.

Kosygin, L. (2012). Aborichthys waikhomi, a new species of fish (Teleostei: Nemacheilidae) from Arunachal Pradesh. Records of the Zoological Survey of India 112(1): 49–55.

Kosygin, L., S.D. Gurumayum, P. Singh & B.R. Chowdhury (2019). Aborichthys iphipaniensis, a new species of loach (Cypriniformes: Nemacheilidae) from Arunachal Pradesh, India. Uttar Pradesh Journal of Zoology 39(2): 69–75.

Kottelat, M. (1990). Indochinese nemacheilines: a revision of nemacheiline loaches (Pisces: Cypriniformes) of Thailand, Burma, Laos, Cambodia and southern Viet Nam. Pfeil, München, 262pp.

Shangningam, B., L. Kosygin, B. Sinha & S.D. Gurumayum (2019). Aborichthys kailashi and A. pangensis (Cypriniformes: Nemacheilidae), two new species from Arunachal Pradesh, India. Ichthyological Exploration of Freshwaters 1–10. https://doi.org/10.23788/IEF-1123

Talwar, P.K. & A.G. Jhingran (1991). Inland Fishes of India and Adjacent Countries. Oxford and IBH Publishing Co. Pvt. Ltd., New Delhi, 2 volumes, 1,158pp.

Thoni, R.J. & R. Hart (2015). Repatriating a lost name: notes on McClelland and Griffith’s Cobitis boutanensis (Cypriniformes: Nemacheilidae). Zootaxa 3999(2): 291–294.

Raghavan, R., N. Dahanukar, J. D. Marcus Knight, A. Bijukumar, U. Katwate, K. Krishnakumar, A. Ali & S. Philip (2014). Predatory journals and Indian ichthyology. Current Science 107(5): 740–742.

Raghavan, R., N. Dahanukar & S. Molur (2015). Curbing academic predators: JoTT’s policy regarding citation of publications from predatory journals. Journal of Threatened Taxa 7(10): 7609–7611. https://doi.org/10.11609/JoTT.o4388.7609-11