Callinectes sapidus. 3. Ventral surface of a virgin female, showing the narrow
triangular abdomen. 4. Ventral surface of an ovigerous female, showing the
broad, semicircular abdomen.
In: "Life History of the Blue Crab (Callinectes Sapidus" by W. P. Hay. Report
of the Bureau of Fisheries 1904. P. 413, Plate II.
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