Photofeature: Appendages of Giant river prawn, Macrobrachium rosenbergii

The body of Giant river prawn (Macrobrachium rosenbergii) is divided into two large parts such as cephalothorax and abdomen. Cephalothorax is consist of head and thorax.

Nineteenth pairs of appendages are found in giant river prawn. Appendages are divided into three groups according to their position of attachment. Such as- Cephalic appendage (five pairs), Thoracic appendage (eight pairs) and Abdominal appendage (six pairs). Photographs of all appendages are given bellow-

Cephalic appendages: Five pairs 1. Antennule 2. Antenna 3. Mandible 4. Maxilula 5. Maxilla

Thoracic appendages: Eight pairs 6. First maxillipede 7. Second maxillipede 8. Third maxillipede 9-13. Walking leg or Pereopod First and second walking leg [Chelate] Third, Fourth, Fifth walking leg [Non-chelate]

Abdominal appendage: six pairs

• 14-18. First, Second Third, fourth and fifth abdominal appendages or pleopods
• 19. Uropod

N.B. Please click on each appendage to view large

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