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Scientific Name: Chlorurus rhakoura Randall & Anderson, 1997
English Name: Raggedfin parrotfish
Local/Bangla Name: Kala tiya mach (কালা টিয়া মাছ), Mathatila tota mach (মাথাটিলা তোতা মাছ), Kalo Tota mach (কালো তোতা মাছ)
Photo: ABR Lab
Classification:
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Perciformes
Family: Scaridae
Description:
The parrotfish species in question has a deep purplish to greyish-brown coloration with bright blue margins on both the dorsal and anal fins. Adult individuals feature a distinctive bulbous fleshy protuberance on their foreheads. The caudal fin displays excised rays, creating a ‘ragged’ appearance along the fin margin. The pectoral fin has a scalloped margin, and a notable characteristic is the very long second-last ray in both the dorsal and anal fins. Additionally, the species exhibits conspicuous white dental plates, which are fused teeth, and the lips cover only about one-quarter of the teeth. In smaller fish, the body scales have a dull bluish-green color with a pinkish to purplish bar on each scale.
Habitat & Distribution in Bangladesh:
Coral reef ecosystem of Saint Martin’s Island, Bangladesh
Environment:
Marine, Brackish (Reef associated fish)
Other References:
Uddin MS, Chowdhury SR, Rashed MR, Singha NK, Tazim MF, Mamun MAA, Mamun A, Rahman MM, Hasan ME (eds.) (2022) Album: Marine and Coastal Fishes of Bangladesh, Department of Fisheries, Government of Bangladesh. 336 pp
Hossain MS, Chowdhury SR, Sharifuzzaman SM , Islam MM, Hasan J, Haque MA , Ali MZ, Hoq ME, Mahmud Y. Marine Fishes of Bangladesh (2020) Bangladesh Fisheries Research Institute and Institute of Marine Sciences, University of Chattogram, 512pp.
