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2017•Eprints@CMFRI Open Access Institutional Repository (Central Marine Fisheries Research Institute)Open access

Gnathanodon speciosus (Forsskål, 1775)

Ritesh Ranjan

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Abstract

Body is compressed and oblong; lips noticeably papillose and upper jaw strongly protractile. Eye diameter smaller than snout length; upper jaw without teeth; lower jaw with a few feeble teeth in young (smaller than 10 cm fork length) and absent in adults. Gill rakers (including rudiments) present are 7 to 9 upper, 19 to 22 lower and 27 to 30 on first gill arch. Two separate dorsal fins, \nthe first with 7 spines, the second with 1 spine and 18-20 soft rays; anal fin with 2 detached spines followed by 1 spine and 15-17 soft rays; lobe of second dorsal fin shorter than head length.

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Body is compressed and oblong; lips noticeably papillose and upper jaw strongly protractile. Eye diameter smaller than snout length; upper jaw without teeth; lower jaw with a few feeble teeth in young (smaller than 10 cm fork length) and absent in adults. Gill rakers (including rudiments) present are 7 to 9 upper, 19 to 22 lower and 27 to 30 on first gill arch. Two separate dorsal fins, \nthe first with 7 spines, the second with 1 spine and 18-20 soft rays; anal fin with 2 detached spines followed by 1 spine and 15-17 soft rays; lobe of second dorsal fin shorter than head length.

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Available abstract

Body is compressed and oblong; lips noticeably papillose and upper jaw strongly protractile. Eye diameter smaller than snout length; upper jaw without teeth; lower jaw with a few feeble teeth in young (smaller than 10 cm fork length) and absent in adults. Gill rakers (including rudiments) present are 7 to 9 upper, 19 to 22 lower and 27 to 30 on first gill arch. Two separate dorsal fins, \nthe first with 7 spines, the second with 1 spine and 18-20 soft rays; anal fin with 2 detached spines followed by 1 spine and 15-17 soft rays; lobe of second dorsal fin shorter than head length.

Key concepts: Snout, Anatomy, Dorsum, Dorsal fin, SPINE (molecular biology), Biology, Molecular biology

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