• Animal Systematics, Evolution and Diversity
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• v.7 no.2
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• pp.257-264
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• 1991

The first zoea of Pinnotheres sinensis showed the characteristics which were correspond well with those of Pinnotheres zoeae ; No carapace spines, endopodites of maxillule and maxilla with 0.4, 1.2(3) setation and endopodite of second maxilliped with 0.4 setation. However, the setations of the basal and coxal endites of the maxillule and maxilla was different from those of Muraoka and Konishi (1977), Konishi(1983).The host of adult crab was Tapes, not mytilus . Thus, there was a need for detailed description of the Korean crab of Pinnotheres sinensis symbiotic with Tapes.

• Animal Systematics, Evolution and Diversity
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• v.9 no.2
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• pp.69-86
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• 1993

The larval stages of Hemigrapsus sanguineus were reared in the laboratory and described with illustrative figures. Five zoeal and one megalopal stages were found in the complete larval development. At 25^{\circ}C.$, the megalopa and the first crab instar were attained in 18 and 31 days after hatching, respectively. The first zoeal larva of H. sanguineus showed the characteristics ~ h i c h coincide with those of the same genus by bearing lateral spines on carapace, B-types of telson and antenna, 1 +5 setae on the endopod of maxillule, and 2 + 2 setae on the endopod of maxilla. Morphological features of H. sanguineus larvae were compared to the previous descriptions of larvae of the same genus and morphological differences among them were discussed.