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Scientific Name: Tylosurus crocodilus (Péron & Lesueur, 1821)
English Name: Hound Needlefish, Fork-tail Alligator Gar
Local/Bangla Name: Kalopith thuitta mach (কালোপিঠ ঠুইট্টা মাছ), Boro tuitta (বড় টুইট্টা)
Hound Needlefish, Fork-tail Alligator Gar - Kalopith thuitta mach (কালোপিঠ ঠুইট্টা মাছ), Boro tuitta (বড় টুইট্টা) - Tylosurus crocodilus - Type: Bonyfish

Photo: Grant Bowler(GBIF)

Classification:
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Beloniformes
Family: Belonidae
Description:
It resembles Tylosurus acus, with the distinction of a straight upper jaw. Teeth in juveniles point anteriorly. The dorsal fin typically has 21–24 rays (usually 22 or 23) and the anal fin has 19–22 rays (usually 21 or 22). Both gonads are present. The coloration consists of dark bluish green on the upper part and silvery below, featuring a dark blue stripe along the sides. Juveniles display an elevated black lobe in the posterior part of the dorsal fin which diminishes with growth.
Habitat & Distribution in Bangladesh:
Coral reef ecosystem of Saint Martin’s Island, Bangladesh
Environment:
Marine (Reef associated fish)
Main 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

Other References:

Rahman AKA, Kabir SMH, Ahmad M, Ahmed ATA, Ahmed ZU, Begum ZNT, Hassan MA, Khondoker M (2009) Encyclopedia of flora and fauna of Bangladesh, Vol. 24. Marine Fishes. Asiatic Society of Bangladesh, Dhaka, Bangladesh, 485 p.

Singha NK, Parvej MR, Uddin MS, Chowdhury SR (Eds. Uddin MS, Chowdhury SR) (2019) Bangladesh Samudrik O Upokolio Matsya Projatir Album (Species Album of Marine and Coastal Fisheries Researches of Bangladesh), Department of Fisheries, Ministry of Fisheries and Livestock, 264 p.

Thompson PM, Islam MA (Eds.) (2010) Environmental Profile of St. Martin’s Island, United Nations Development Programme, Dhaka, 150 p

Hussain MM (1970) The Marine and Estuarine Fishes of North East part of the Bay of Bengal. Scientific Researches. East Regional Laboratories, Dhaka. 52.

Habib KA, Islam MJ (2020) An updated checklist of Marine Fishes of Bangladesh. Bangladesh Journal of fisheries, 32(2), 357-367.

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