| KEY TO IDENTIFICATION OF SHRIMPS |
Systematic position of Tiger Shrimp
| Phylum | Arthropoda |
| Class | Crustacea |
| Subclass | Malacostraca |
| Family | Penaeidae |
| Genus | Penaeus |
| Species | monodon |
A thorough knowledge of morphological character is highly essential for the identification of shrimps. These characters are illustrated clearly in the schematic diagram of penaeid shrimp.
Commercial shrimp and prawn
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Shrimp can be grouped into penaeid and Non-penaeid. These two groups of shrimps and it can be easily separated. The pleurae on either side of the second abdominal segment overlap the pleurae of the first and third segments in non-penaeids. while in penaeids they overlap only the third segment . |
The first three pairs of peraepods are chelate in penaeids. While in non-penaeids only the first two pairs of peraepods are chelate. For transferring sperms the male penaeids shrimp has petasma and for storing sperms the female has thelycum. In non penaeids such organ are absent. The females of non-penaeid carry eggs in their pleopods as a cluster. While females of Penaeids lay eggs directly in water.
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The major characteristics used in identification of shrimps are mainly the carapace and its spines, the rostrum and its ventral and dorsal teeth, the ridges or carinae, the grooves or sulci, telson, appendages and their segments, petasma and appendix musculina in the male, the thelycum in female. |
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