Penaeus (Penaeus) semiculcatus
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Fifth pereopod with small, but distinct exopod
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Hepatic carina straight, sloping anterioventrally
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Adrostral carina and groove extending beyond epigastric tooth
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Antennal crest very prominent, ending above posterior third of hepatic
carina
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Gstro-orbital carina extending over posterior 2/3 of distance between hepatic
spine and orbital margin
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Petasma with distomedian projections reaching as far as costae
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Free border of ventral costae unarmed or minutely serrate near apex
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Outer surface of lateral lobes minutely tuberculate
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Thelycum with lateral plates, their median margins forming tumid lips
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Anterior process with raised edges delimiting a depressed area
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Posterior process convex, partly inserted between lateral plates
Copyright 1998 Bioinformatics Centre,
National Institute of Oceanography, Dona Paula, Goa, India