By Sascha W. Felix

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Monodon and P. semisulcatus can be separated by the following characteristics. Table 6: Characteristic Differences Between P. monodon and P. semisulcatus P. monodon P. semisulcatus • Brown pigment distributed evenly but more • Brown pigment distributed only on the anterior intensively on posterior part of telsion. base and about one-third posterior tip of telsion. • Endopod of uroped may be totally or partly • Only posterior part of endoped of uropods is pigmented. pigmented. • Exopod of uropod is mostly unpigmented; in • Exopod of uropod mostly with small blotch on some cases with a small blotch on the inner the inner later oposterior margin as continuation latero-posterior margin.

Indicus or P. merguiensis. For the better utilization of “lab-lab” in shrimp culture, the following aspects need to be kept considered. 1. “Lab-lab” can be used for shrimp culture during the first two months of culture or up to a point when the shrimps grow to a size of about 3–4g. It can be assumed that “lab-lab” might be a suitable food to grow in a nursery pond. 2. 5 m deep to provide shrimp with shelter against high temperature during the day. As shrimps largely feed during night hours, the shallow portions with “lab-lab” may serve as feeding platforms on which the shrimp could graze.

Semisulcatus • Brown pigment distributed evenly but more • Brown pigment distributed only on the anterior intensively on posterior part of telsion. base and about one-third posterior tip of telsion. • Endopod of uroped may be totally or partly • Only posterior part of endoped of uropods is pigmented. pigmented. • Exopod of uropod is mostly unpigmented; in • Exopod of uropod mostly with small blotch on some cases with a small blotch on the inner the inner later oposterior margin as continuation latero-posterior margin.

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