242 AMERICAN JOURNAL 



FRENCH. 



Memoires de la Societe des Sciences Physiques et Naturelles de 

 Bordeaux. Vol. 6. 1868. 



Meeherches sur la generation des Mollusques Gasteropoda. 

 By J. M. Perez. 



Mission Scientifique au Mexique et dans l'Amerique Centrale, 

 Ouvrage publie par ordre de S, M. 1'Empereur. Septieme parte. 

 Etudes sur les Mollusques Terrestres et Fluviatiles. By P. Fischer 

 and H. Crosse. Folio, 150 pp. 4 colored and 2 plain plates. Paris, 1870. 



The introductory portion of this volume gives a very complete 

 resume' of the various scientific explorations of the countries in- 

 cluded in the title, with lists of the papers published relating to 

 their malacology. The descriptions and illustrations are very 

 complete, leaving nothing to be desired on either point. The 

 text embraces full descriptions and bibliography of the species of 

 the genera Streptostyla and Glandina, and is rendered especially 

 interesting on account of the numerous illustrations of species 

 never before figured, thus, for the first time, rendering the iden- 

 tification of these shells satisfactory. Most of the new species 

 have been described already in the Journal de Conch yliologie, 

 but the following is diagnosed in this work for the first time. 



Glandina longula, Crosse et Fischer, Mexico. 



Strebelia (Physella) is treated of as a terrestrial genus allied 

 to Glandina, as suggested by me in this Journal, not as a flu- 

 viatile mollusk, which Mr. Binney has supposed it to be. (See 

 his "Land and Fresh-water Shells of North America.") 



There are anatomical details of structure by the experienced 

 pen of Dr. Fischer, and, as the volume comes to an end in the 

 midst of his notes on the genus Zonites, it is to be presumed that 

 in future numbers the same nnignificent style of publication will 

 be continued. 



This work is creditable alike to its authors and to the French 

 Government, which, amid the political and financial troubles fol- 

 lowing a disastrous war and change of administration, nobly con- 

 tinues its enlightened support of science. 



Journal de Conchyliologie. Vol. XI, No. 2. 7 2 pp., 8vo. Paris, April, 

 1871. (3 colored plates.) 



Note sur le genre Calliopcea ; d'Orbigny. By P. Fischer. 



Synonymy de quelques genres et especes de Coquilles terres- 

 tres habitant la JPolynesie. By W. Harper Pease. 



