5.1.1. Fenneropenaeus indicus

Unit 5 -Key to important species the family Penaeidae

5.1.1. Fenneropenaeus indicus - Indian white shrimp

  • Carapace without lateral keels;
  • Cutting portion of mandible short and massive;
  • Rostrum toothed on dorsal, as well as on ventral margin. Rostrum slender and long, with 7 to 9 teeth on dorsal and 4 to 6 teeth on ventral margin; blade of rostrum becoming moderately high in large specimens;
  • Adrostral crest and groove extending as far as, or just beyond epigastric tooth, the groove shallow; post-rostral crest ending distinctly before posterior margin of carapace; gastrofrontal and hepatic crests absent; gastroorbital crest extending over posterior 2/3 of distance between hepatic spine and orbital margin;
  • In adult males, dactyl of third maxilliped about as long as propodus (0.85 to 1.0 times). Petasma (in males) with distomedian projections overhanging distal margin of costae; ventral costae unarmed; outer surface of lateral lobes with a few rows of minute tubercles.
  • Thelycum (in females) with lateral plates, their median margins forming tumid lips beset with papillae on their inner surface;
  • Anterior process rounded distally; posterior process ill-calcified, almost completely inserted between lateral plates.
fenin

Last modified: Friday, 2 September 2011, 11:34 AM