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Scientific Name: Ilisha megaloptera (Swainson, 1839)
English Name: Bigeye ilisha
Local/Bangla Name: Borocokha ilish (বড়চোখা ইলিশ), Choukka (চৌক্কা)
Bonyfish : Ilisha megaloptera

Photo: FishBase

Classification:
Kingdom: Animalia
Phylum: Chordata
Class: Teleostei
Order: Clupeiformes
Family: Pristigasteridae
Description:
The body depth is 2.6–3.6 times the standard length (SL). The maxilla lacks a distinct lobe on its edge and there is no toothed hypomaxilla. The swim bladder has a single long tube that extends posteriorly down the right side of the body cavity above the base of the anal fin.
Habitat & Distribution in Bangladesh:
Found in river Meghna and its branches. Fairly common in Chandpur during rainy season.
Environment:
Freshwater, Brackish (Pelagic-neritic)
Comments:
It is an anadromous fish. Also found in marine environment
Main References:

Rahman AKA 2005 Freshwater Fishes of Bangladesh, 2nd ed., Zool. Soc. Bangladesh, Dhaka, Bangladesh, xviii + 394 pp.

Other References:

Hossain M, Wahab M, Belton B (2012) The Checklist of the Riverine Fishes of Bangladesh. FAN Bangladesh. 1. 29-39.

Siddiqui KU, Islam MA, Kabir SMH, Ahmad M, Ahmed ATA, Rahman AKA 2005 Freshwater Fishes of Bangladesh, 2nd ed., Zool. Soc. Bangladesh, Dhaka, Bangladesh, xviii + 394 pp. AKA, Haque EU, Ahmed ZU, Begum ZNT, Hassan MA, Khondker M, Rahman AKA 2005 Freshwater Fishes of Bangladesh, 2nd ed., Zool. Soc. Bangladesh, Dhaka, Bangladesh, xviii + 394 pp. MM (eds.) 2007 Encyclopedia of Flora and Fauna of Bangladesh, Vol. 23. Freshwater Fishes. Asiatic Society of Bangladesh, Dhaka 300 pp.

Froese R, Pauly D (Editors) (2024) FishBase. World Wide Web electronic publication. www.fishbase.org, version (02/2024).

DNA Barcodes from Bangladesh
GenBank Accession Number:
Other DNA Barcodes & Nucleutide Sequences
Global IUCN conservation status:
Other Information