BIBLIOGRAPHY. 



205 



RATHBUN, Mary J.— Continuefl. 



described, and also a fossil specimen. In an 

 appendix are given notes on the habits of C. 

 tapidus, by the Hon. J. D. Mitchell, Judge 

 Benjamin Harrison and Mr. Willard Xye, Jr. 



Descriptions of two new siiecies of 



fresh-water crabs from Costa Rica. 



Proc. IT. S. Nat. Mtis., xviii, No. 1071, 



July 8, 1896, pp. 377-379, pis. xxix, xxx, 



figs. 1-3. 



Descriptions of two new species of Psexi- 



dothelphvsa from Costa Rica, received from 



the National Mu.seum at San Jos^, through 



Mr. J. Fid. Tristan. 



Description of a new genus and four 



new species of crabs from the West 

 Indies. 



Proc. U. IS. Nat. Mus., xix, No. 1104, Dec. 21, 

 1896, pp. 141-144. 

 The crabs here described occur at the Florida 

 Keys and Jamaica, and are represented in the 

 collection of Mr. P. "W. Jarvis of Kingston. 

 The descriptions are preliminary to a "List of 

 the Decapod Crustacea of Jamaica." 



Descriptions de noitvelles especes de 



Crabes d'eau douce appartenant aux 

 collections du Museum d'liistoire natu- 

 relle de Paris. 



Bull. 2Ins. d'Hist. Xat. Paris, ni. No. 2, 

 March, 1897, pp. 58-61. 

 Comi)rises descriptions of 4 species of Pseu- 

 dothelplnisa from Central and South America, 

 published tlirough the courtesy of Prof. E. L. 

 Bouvier. Specimens of each species have 

 been presented to the U. S. National Museum. 



Synopsis of the American Sesarm;e 



with description of a new species. 



Proc. Biol. Soc. Wash., xi, April 20, 1897, 

 pp. 89-92. 

 In the synopsis, 4 subgenera and 18 species 

 are recognized, and the synonymy is briefly 

 given. Of the known species, 3 here receive 

 new names, and one is described for the first 

 time. 



Synopsis of the American species of 



Palicus Philippi {z=CiimopoUa Roux), 

 with descriptions of six new species. 

 Proc. Biol. Soc. Wash., xi, April 26, 1897, 

 pp. 93-99. 

 Seventeen species of Palicus (of -which six 

 are new) have been dredged iu American 

 waters bj" the steamers Bache, Blaise, and 

 Albatross. A synopsis of all the species is 

 given, together with descriptions of the new 

 forms. 



• Synopsis of the American species of 



Ethusa with description of a new 

 species. 



Proc. Biol. Soc. Wash., xi, !May 13, 1897, pp. 

 109-llU. 

 A synopsis of the 5 American species of 

 Elhusa, three of which occur on the Atlantic 



RATHBUN, Mary J.— Continued. 



coast, and two on the Pacific. The new species 

 described, E. tenuipes, inhabits the Gulf of 

 Mexico and the Florida Keys. 



Description of a new species of Can- 

 cer from Lower California, and addi- 

 tional note on Sesarma. 



Proc. Biol. Soc. Wash., xi. May 13, 1897, 

 pp. 111-112. 

 The new species of Cancer, C. anthonyi, was 

 collected at Playa Maria Bay, west coast of 

 Lower California, by Mr. A. W. Anthony. 



Attention is called to Sesarma (equatorialis 

 Ortmann, a species which should be added to 

 those enumerated in a list published April 26, 

 1897. 



The African Swimming Crabs of the 



genus Callinecfes. 



Proc. Biol. Soc. Wash., xi, June 9, 1897, 

 pp. 149-151. 

 Four species of CalUnectes are found on the 

 coast of Africa. Of these, one species is new, 

 one was formerly considered a subspecies, C 

 tumdus gladiator, and another, hitherto known 

 as C. larvatus Ordway, is found to be synony- 

 mous with Ne2>tunu.s marpinatus A. Milne- 

 Edwards, of earlier date. Incidentally the 

 species C. tumidus Ordway, is changed to G. 

 exasperatus (Gerstircker). 



A revision of the nomenclature of 



the Brachyura. 



Proe. Biol. Soc. Wash., xi, June 9, 1897, 

 pp. 153-167. 

 This revision is made in accordance with the 

 code of the American Ornithologists' Union. 

 The changes which it is found necessary to 

 make are discussed under the following head- 

 ings : (1) Names diverted from their original 

 meaning; (2) The name of a composite genus 

 tenable for one or more of its species which do 

 not belong in older genera; (3) The name of a 

 composite genus, when made up wholly of older 

 genera, tenable for a component part requiring 

 a name; (4) Specification of type; (5) Earlier 

 nanu's neglected ; (6) Names based on figures 

 without description; (7) Post-Linna'an name 

 given by a polynomialist invalid ; (8) I'reoc- 

 cupiednames; (9) Names given simultaneously 

 to different genera; (10) Original orthography 

 to be preserved except in case of typographical 

 error. 



Twenty-six new generic names are proposed 

 for old names which have been used in viola- 

 tion of accepted rules. 

 RICHARDSON, Harriet. Description 

 of a new crustacean of the genus Sphcv- 

 rovia from a warm spring in New 

 Mexico. 



Proc. U. S. Xat. Mns., xx, No. 1128, Feb. 



6, 1897, p. [1.]. Advance edition. 



This crustacean {Sphceroma thermophilinn) 



was taken from a warm sj)ring mar Socorro, 



New Mexico, by Mr. T. D. A. Cockerell. It is 



