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Point Lookout State Park, St. Mary's County, Maryland, USA
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Blue Crab (Callinectes sapidus) males
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Lupocyclus quinquedentalus, male, type.
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Ovalipes ocellatus, the lady-crab.
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Charybdis japonica, male, Japan.
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Etrille (Portunus puber, linne), Crabe Nageur.
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Callinectes sapidus. Figure 1--the Cast Shell of a Half-Grown Male; Figure 2--The Ventral Surface of a Full-Grown Male
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Geryon tridens, Krover, Young.
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Portunus pubescens, male, Honolulu market.
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Point Lookout State Park, St. Mary's County, Maryland, USA
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Blue Crab (Callinectes sapidus) females: virgin (above) and egg-bearing (below)
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Gonoplax rhomboides, Fabricius, Young.
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Green Crab. Amisquam, Mass..
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Callinectes sapidus. Ventral Surface of a Virgin Female, Showing the Narrow, Triangular Abdomen (fig.3); Ventral Surface of an Ovigerous Female, Showing the Broad, Semi-Circular Abdomen (Fig.4)
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Charybdis orientalis, male, Honolulu.
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Blue Crab (Callinectes sapidus) backing out of old shell during final stages of molting
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Swimming Crab, Portunus depurator, British.
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Larval stages of the common shore crab (Carcinus maenas). A, Young zoea, shortly after hatching; B, megalopa stage
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Callinectes Sapidus. Cast shell of a half-grown male (1); Ventral Surface of a Full-Grown Male
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Geryon affinis Milne-Edwards et Bouvier.
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Common Shore-Crab (Carcinus maenas).
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Callinectes Sapidus. Three Successive Stages of the Molting of One Individual of Callinectes Sapidus
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Green Crab. Carcinus maenas, Leach
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Callinectes Sapidus. Further Stages of the Molting of Callinectes Sapidus
