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