THIS volume, by an author who has earned a high reputation by previous work on Decapod Crustaceans, is part of a systematic treatise dealing with the crabs of the whole of the New World, to be completed in four parts, the main purpose being, to give a brief description, with figures, of each species, together with a detailed catalogue of the specimens in the United States National Museum.
The Grapsoid Crabs of America.
By Mary J. Rathbun. (Smithsonian Institution, U.S. National Museum, Bulletin 97.) Pp. xxii + 461. (Washington: Government Printing Office, 1917.)