ZOOLOGY. 591 



M^moires concernant I'Histoire natiirelle de I'empire chiuois par ties Pferes de l.» Com- 

 pagnie de J^sus. 2 cahier. Notes sur les mollusqiies terrestres de la valine du 

 Fleuve Bleu. Chang-Hai, 1882. (4to, 90 pp., 10 pi.) 



Mollendorff (O. von). Materialien zur Fauna von China. I. Die Deckelschnecken, 

 Mit 2 Taf. Jahrb. deutscli. malak. Ges., 9. Jahrg., 1882, pp. 251-278. 



(Africa.) 



Crosse (Henri). Faune malacologique dulac Tanganyika. Aveclpl. Jouru. de Con- 

 chyliol., t. 30. 



(Australia.) 



Smith (Edgar A.). On the fresh-water shells of Australia, with 3 pi. Journ. Linn. Soc. 

 London, Zool., v. 16, p. 255-317. (155 sp., of which 27 are new; 14 pseudo-Aus- 

 tralian sp.) 



CONCHIFERS. 



Morpltology. 



Mitsukuri (K.). On the structure and significance of some aberrant forms of Lamel- 

 libranchiate gills. With 1 pi. Stud. Biolog. Laborat, Johns Hopkins University, 

 v. 2, p. 257-270. (Reprinted from Quart. Journ. Micr. So.) 



The Oysters. 



Bouchon-Brandely. De la sexuality chez I'hultre ordinaire (0. cdulis) et chez I'hultre 

 portugaise (0. aw<7Mtoa). F6condation artificielle de I'hultre portugaise. Note 

 de M. Bouchon-Brandely, presentde par M. Berthelot. Comptes rendus, Acad. Sci. 

 Pans, t. 95, pp. 256-259, July 31, 1882. 



. On the sexuality of the common and that of the Portuguese oyster (0. a)igu- 



lata). Artificial fecundation of the Portuguese oyster. Translatedby J. A. Ryder. 

 Bull. U. S. Fish Commission, v. 2, pp. 339-341. 



. Rapport relatif a la g6n6ration et i\ la f^condation artificielle des huitres, 



adress^ an ministre de la marine et des colonies, par M. Bouchon-Brandely, se- 

 cretaire du Coll6ge de France. Journal ofiiciel de la R^publique Frangaise. Dec, 

 16 and 17, 1882 ; pp. 6762-6764 and 6778-678S. 



Report relative to the generation and artificial fecundation of oysters, ad- 



dressed to the minister of the marine and colonies. (With notes by J. A. Ryder.) 



Bull. U. S. Fish Commission, v. 2, pp. 319-338. 

 Hoek (P. P. C.) Recherchessur les orgaues g^nitaux des huiitres. Comptes rendus, 



t. 95, Nov. 6, 1882. 

 . Researches on the generative organs of the oyster (O. e(7H?!s). (A translation 



of the foregoing by J. A. Ryder.) Bull. U. S. Fish Commission, v. 2, pp. 343-347. 

 Horst (R.) Bijdrage tot de Kennis van de Ontwikkelingsgeschiedenis van de Oester 



(Ostrea edulis L.). Tijdschr. d. Ned. Dierk. Vereen., dl. 6, 1882. 

 . On the development of the European oyster (Ostrea edulis L.). Quar. Journ. 



Mic. Sci., n. s. v. xxii, pp. 341-346, pi. 27. 

 . A contribution to our knowledge of the development of the oyster (Ostrea 



edulis L.). (Translated from the original Dutch by J. A. Ryder.) Bull. U. S. 

 Fish Commission, v. ii., pp. 159-167. 



Oysters and their propagation. 

 Much alarm has been felt in some quarters lest nature unaided should 

 be unable to answer the demands of an oyster-loving, population, in- 

 creasing in an extraordinary ratio, and covering a continent. The U. 

 S. Commissioner of Fisheries therefore delegated Mr. John A. Eyder, an 

 accomplished embryologist, to investigate the feasibility of the artilicial 

 propagation of the esteemed mollusk. Meanwhile Euroj)ean goverii- 



