The Genus Callinectes

By M. Rathbun. 2010

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The genus CaUinectes was formed by Stimpsou in 1860 ^ for the reception of the species of Portniiiche haviug a narrow or ±-shaped abdomen in the male, and the merus of the outer maxillipeds short, sharply prominent, and curved outward at its antero-external angle. In this genus he places "the common American Lupa diacanfha^^ (Latreille), and for want of sufficient material is unable to find constant differences between the northern and southern varieties of this species, or even to separate Pacific Coast specimens, regarding as doubtfully distinct L. beJlicosa, which he had recently described from Guaymas. In 1S63 Lieut. Albert Ordway ^ j)ublished comparative descriptions of nine different species of CaUinectes.^ Say's name hastatus was given to the common sjiecies of eastern North America, the name diacanthus was restricted to a Brazilian form described by Dana in 1852, and six new species were added. Mr. Ordwaj^ claimed that there were wellmarked characters separating the species, the variations in the abdomi-

Subfields: Ecology, Evolution, Behavior and Systematics, Organic Chemistry

View Paper: https://www.semanticscholar.org/paper/c82ba178d242b5b3ced747f66da2aeea20beb854

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