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Scientific Name: Gumbosia affinis (Baird & Girard, 1853)
English Name: Mosquitofish
Bonyfish : Gumbosia affinis

Photo: NOZO & Togabi (Wikipedia)

Classification:
Kingdom: Animalia
Phylum: Chordata
Class: Teleostei
Description:
Environment:
Freshwater
Comments:
Exotic fish in Bangladesh. It has been brought from India to control the mosquito larvae.
Main References:

Hossain, M. M. M., Uddin, M. I., Rupom, M. A. H., Ferdoush, J., Hossain, M. M., Mondal, S., & Rahman, M. A. (2019). Molecular detection of mosquitofish (Gambusia affinis) in the south-western region of Bangladesh. Asian Journal of Scientific Research, 12, 535–545.

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