Studies on Decapod Crustacea from the Indian River Region of Florida, XVII. Larval Stages of Plagusia Depressa (Fabricius, 1775) Cultured under Laboratory Conditions (Brachyura: Grapsidae)
Larval stages of the Atlantic grapsid crab, Plagusia depressa, were cultured in the laboratory beyond the first stage for the first time, and are described and illustrated. The observed development consisted of a pre-zoeal, at least five, and probably six, zoeal stages; no megalopal stage was obtained. Based on laboratory rearing the minimum duration for completion of larval development is 60 days, which may account in part for the widespread distribution of the species in the Atlantic Ocean. Morphological characters of the first zoeal stage of P. depressa are compared with those noted for the same stage in Plagusia chabrus and P. dentipes from the Indo-Pacific region, and a provisional synopsis of larval characters for the subfamily Plagusiinae is advanced.
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Document Type: Research Article
Publication date: 1980-10-01
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