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Scientific Name: Polynemus paradiseus Linnaeus, 1758
English Name: Paradise threadfin
Local/Bangla Name: Topse (তপসে), Taposi (তাপসী), Rikshaw (রিক্সা), Ramchos (রামছোস), Rissa (রিসসা)
Labcode: F1511sb-30-2, F1602sb-37, F1602sb-37-2, F1602sb-37-3
Photo: ABR Lab
Classification:
Kingdom: Animalia
Phylum: Chordata
Class: Teleostei
Order: Carangaria incertae sedis
Family: Polynemidae
Description:
It has 1st dorsal fin with 7 spines, the 2nd dorsal fin with 1 spine and 12–13 soft rays as well as the anal fin with 2 spines. They also exhibit villiform teeth on the vomer and 66–71 pored lateral line scales. The head and body are greyish-black dorsally and yellow ventrally with the anterior parts of the 1st and 2nd dorsal fins appearing greyish-black. Posterior margin of the caudal fin is yellow while other parts are greyish-black. Pectoral and pelvic fins are uniformly vivid yellow.
Habitat & Distribution in Bangladesh:
Lives over sandy bottoms, regularly entering freshwaters during breeding season.
Environment:
Freshwater; Brackish (Demersal; amphidromous)
Comments:
It is also found in marine envirment
Main References:
Rahman AKA (2005) Freshwater Fishes of Bangladesh. 2nd ed. Zool. Soc. Bangladesh, Dhaka, Bangladesh. xviii + 394 pp.
Other References:
Siddiqui KU, Islam MA, Kabir SMH, Ahmad M, Ahmed ATA, Rahman AKA, Haque EU, Ahmed ZU, Begum ZNT, Hasan MA, Khondker M and Rahman MM (eds.) (2007) Encyclopedia of Flora and Fauna of Bangladesh. Vol. 23. Freshwater Fishes. Asiatic Society of Bangladesh, Dhaka. 300+xxxi. pp.
DoF Bangladesh (2023) Album: Freshwater Fishes of Bangladesh, Department of Fisheries, Ministry of Fisheries and Livestock, Bangladesh, Dhaka. 200 pp.
