BOOKS RECEIVED. 



The American Naturalist. — Edited by Prof. A. S. Packard, jun,, 



vvo., Nov. -Dec, 1878. [The Editor. 



The Naturalist.— Edited by C. P. Hobkirk, F.L.S., and Geo. T. 



Porritt, F.L.S., of Huddersfield, 8vo., Nov.-Dec, 1878. 



[The Editors. 

 On the Opercula of the Family Strepomatidae. — By W. D. 



Hartman, M.D., 8vo., pp. 3. [The Author. 



Pro.ces-Verbaux des Seances de la Societe Malacologique de 



Belgique. — Tome vii., 1878, pp. 92. [The Society. 



Biicher-Verzeichniss von R. Friedlander and Sohn, Berlin. — 



No. 281, Conchyliologie, 1878. [The Publishers. 



Science News, published fortnightly by S. E. Cassino. — Vol. I., 



No. 4, Salem, Mass., Dec. 15, 1878, pp. 28, 8vo. 



[The Publisher, 

 descriptions of ten new species of shells. — By G. B. Sowerby, jun. 



— P.Z.S., Nov. 5, 1878, 8vo., pp. 4 and a plate. [The Author, 

 Jahrbiicher der Deutschen Malakozoologischen Gesellschaft. — 



Edited by Dr. W. Kobelt, Frankfort, Oct. 1878, 8vo., pp. 90 



and a plate. [The Editor. 



Journal de Conchyliologie. — Edited by Crosse and Fischer, Paris, 



Oct. 1878, 8vo., pp. 138 and 2 plates. [The Editors. 



FOR SALE-Price £175, 



A very fine and complete COLLECTION OF UNIVALVES, including about 

 8,000 species, of which 1,800 are Marine & 1,200 Land d Freshwater. 



The larger species are usually only represented by one speci- 

 men, and the smaller ones by two or more, in Glass Boxes. 



Outline of the Collection. 



Murex tenuispi/ja (2), falma 7vsce, and 37 others. Vohita 

 cymbiola, ?-utila, pallida, volvacea, fusiformis, fulgetrum, angulaia, 

 and 22 others. Mitra, about roo species. Cypi'cea aurora^ 

 iwibilkata, sidcidentata, exusta, fessellata, Capensis, and about 120 

 other species. Haj-pa imperialis (2) and 6 others. Triton^ 

 Persona, Ranella, about 80 species. Marginella, 50 species. 

 Terebra, 50 species. Nassa, about 120 species. Coliwibella and 

 Engi7ia, 80 species. Co/uis, about 100 species. Oliva and 

 Ancillaria, about 60 species. Tiirbinidce and TrochidcB, about 

 175 species. 



Land Shells. 



Helix, including Nanina and Cochlostyla, about 430 species. 

 Bulinnis, Bulimuhis, and Buli>ninus, about 80 species. Clausilia,^ 

 90 species. Achatitiella and Partula, about 1 20 species. Streptaxis, 

 5 species. Melaniadce and Sirepomatidce., about no species. 

 Paludina, Tanalia,Ampullaiia,&'c., about 40 species. Cyclostoma, 

 Helicina, Cataulus, Cyclophoriis, and other operculated land shells 

 (many genera) about 130 species. 



Apply — British Naturalists' Agency, 



St. Ann Street. LEEDS. 



