Studies on Decapod Crustacea from the Indian River Region of Florida. XV. the Larval Development Under Laboratory Conditions of Euchirograpsus Americanus A. Milne Edwards, 1880 (Crustacea Decapoda: Grapsidae) with Notes on Grapsid Subfamilial Larval Characters
The larval stages of the western North Atlantic grapsid crab, Euchirograpsus americanus, cultured in the laboratory, are completely described and illustrated. Development consists of a pre-zoeal, five (occasionally six) zoeal, and a megalopal stage. An intercalated, fifth (or
advanced fourth) stage as well as an additional sixth stage are described. Characters in the known larvae of the subfamilies Varuninae, Grapsinae, Sesarminae, and Plagusiinae as noted from the literature and this study are compared and similarities among the first zoeal stages of the Grapsidae
are briefly discussed.
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