Metapenaeus affinis
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Ischial spine on 1st pereopod small or absent
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Rostrum slightly curved upward
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Distomedian projections of petasma crescent shaped
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The anterior plate of thelycum deeply grooved longitudinally and considerably
wider posteriorly

Copyright 1998 Bioinformatics Centre,
National Institute of Oceanography, Dona Paula, Goa, India