Taxonomy of Shellfish

5.3.1. Parapenaeopsis stylifera

Unit 5 -Key to important species the family Penaeidae

5.3.1. Parapenaeopsis stylifera - Kiddi shrimp

• Rostrum sigmoid-shaped, strongly upcurved and by far overreaching tip of antennular peduncle (in males somewhat shorter), armed with 7 to 9 dorsal teeth; but toothless in distal half or more;
  
• Epigastric tooth present;
• Postrostral crest almost reaching posterior margin of carapace; longitudinal suture long, reaching 2/3 of carapace length;
• Telson armed with 4 pairs of lateral fixed spines;
• Antennular flagellae as long as carapace;
• Epipod and basis of third pereopod unarmed.
• In males, distolateral projections of petasma slender, horn-like and straight, directed antero-laterally and with ventro-external openings;
  
• Distomedian projections small and curved ventrally.
• In females, anterior plate of thelycum square, concave, with a slender stem-like posterior process;
• Posterior plate deeply notched anteromedially.