3.1.2 Sexual dimorphism for Penaeids

3.1.2 Sexual dimorphism

Male

Female

1. Presence of petasma in the 1st pleopod.

2. Presence of appendix masculina in the 2nd pleopod.

3. Thelycum is absent.

4. Gonopore is located at the base of 5th walking log.

5. Smaller in size.

Petasma is absent in the 1st pleopod in female.

Appendix masculina is absent.

Thelycum is present between pereopods IV & V.

Gonopore is located at the base of 3rd walking leg.

Larger than male of the same age group.

Penaeus monodon

unit2a




Penaeus indicus

unit 2b


Last modified: Sunday, 25 December 2011, 5:54 AM