Indian Journal of Geo-Marine Sciences

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Occurrence of Oratosquilla oratoria (De Haan, 1844) and Oratosquillina gravieri (Manning, 1978) from the trawl bycatches of Nagapattinam region, Tamil Nadu


Affiliations
1 TNJFU - Dr. MGR Fisheries College and Research Institute, Thalainayeru, Nagapattinam – 614 712, Tamil Nadu, India
2 Tamil Nadu Dr. J. Jayalalithaa Fisheries University, Nagapattinam – 611 002, Tamil Nadu, India
3 TNJFU - Fisheries College and Research Institute, Thoothukudi – 628 008, Tamil Nadu, India

Six species of mantis shrimps were recorded in the trawl catches of Nagapattinam region during January – December, 2018. The occurrence of two species namely Oratosquilla oratoria (De Haan, 1844) and Oratosquillina gravieri (Manning, 1978) were reported for the first time in the trawl bycatches of Nagapattinam region. The morphometrics of these two species is reported in this paper. Presence of inferodistal spine in the merus of the raptorial claw, rostral plate short and trapezoid to square in shape, 5th abdominal segment without submedian patch, 4th abdominal segment submedian carinae unarmed in Oratosquilla oratoria and rostral plate elongate and rectangle, lateral process of 6th thoracic somite with slender, triangular anterior lobe and dactylus of the raptorial claw with 6 teeth in Oratosquillina gravieri are chief characters to differentiate from other species.
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  • Occurrence of Oratosquilla oratoria (De Haan, 1844) and Oratosquillina gravieri (Manning, 1978) from the trawl bycatches of Nagapattinam region, Tamil Nadu

Abstract Views: 161  | 

Authors

S Santhoshkumar
TNJFU - Dr. MGR Fisheries College and Research Institute, Thalainayeru, Nagapattinam – 614 712, Tamil Nadu, India
P Jawahar
Tamil Nadu Dr. J. Jayalalithaa Fisheries University, Nagapattinam – 611 002, Tamil Nadu, India
B Sundaramoorthy
TNJFU - Fisheries College and Research Institute, Thoothukudi – 628 008, Tamil Nadu, India
N Jayakumar
TNJFU - Fisheries College and Research Institute, Thoothukudi – 628 008, Tamil Nadu, India
A Srinivasan
Tamil Nadu Dr. J. Jayalalithaa Fisheries University, Nagapattinam – 611 002, Tamil Nadu, India
A Subburaj
TNJFU - Dr. MGR Fisheries College and Research Institute, Thalainayeru, Nagapattinam – 614 712, Tamil Nadu, India

Abstract


Six species of mantis shrimps were recorded in the trawl catches of Nagapattinam region during January – December, 2018. The occurrence of two species namely Oratosquilla oratoria (De Haan, 1844) and Oratosquillina gravieri (Manning, 1978) were reported for the first time in the trawl bycatches of Nagapattinam region. The morphometrics of these two species is reported in this paper. Presence of inferodistal spine in the merus of the raptorial claw, rostral plate short and trapezoid to square in shape, 5th abdominal segment without submedian patch, 4th abdominal segment submedian carinae unarmed in Oratosquilla oratoria and rostral plate elongate and rectangle, lateral process of 6th thoracic somite with slender, triangular anterior lobe and dactylus of the raptorial claw with 6 teeth in Oratosquillina gravieri are chief characters to differentiate from other species.