Tuesday, July 28, 2015

[Ichthyology • 2015] Why is Pseudosphromenus cupanus (Teleostei: Osphronemidae) reported from Bangladesh, Indonesia, Malaysia, Myanmar, and Pakistan?


FIGURE 1 (a) Pseudosphromenus cupanus, NRM 40344, 27.1 mm SL, India, Kolkata, ornamental fish farm; (b) P. dayi, NRM 12069, 22.7 mm SL, India, Kerala, Kottayam; (c) P. dayi, living specimen in aquarium, ca 40 mm SL; (d) Badis badis, image used as illustration of Pseudosphromenus cupanus in Rahman & Ruma (2007), slightly adjusted. Photo by Gawsia W. Chowdhury

Abstract

The native distribution of the small labyrinth fish species Pseudosphromenus cupanus includes southern India and Sri Lanka. According to literature it has a range including also Pakistan, Bangladesh, Myanmar, Malaysia, and Indonesia (Sumatra) but there are no voucher specimens or reliable observations from those areas. The distribution record of Pcupanus was inflated partly by including Pdayi as a synonym. Pseudosphronemus dayi is native to the Western Ghats in India, but the origin of the aquarium importation in 1907 was reported as both Cochin (=Kochi) and Malacca (=Malaysia), the latter locality obviously in error. The basis for the Sumatra record is an obviously mislabeled sample of Pdayi from Pulau Weh close to Sumatra. The basis for reporting the species from Pakistan, Myanmar or Bangladesh could not be located. Misidentified museum specimens from Myanmar and Pakistan identified as P. cupanus were never published on. Pseudosphromenus cupanus has been considered recently to be extinct in Bangladesh, but in fact it never occurred there.

Keywords: Asia, Freshwater, Geographical distribution, Threat status




Kullander, Sven O., MD. M. Rahman, Michael Norén & Abdur R. Mollah. 2015. Why is Pseudosphromenus cupanus (Teleostei: Osphronemidae) reported from Bangladesh, Indonesia, Malaysia, Myanmar, and Pakistan? Zootaxa. 3990(4): 575–583. DOI: 10.11646/zootaxa.3990.4.6

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