22 Mollusca für 1912. 
— (2). The Genera Oryptogirasia and COryptosoma. In: Nautilus 
vol. 26 p. 70. 
— (3). Animals and Plants deseribed as new from Colorado in 
1911. (Publ. Colorado Biol. Surv. No. 9). In: Univ. Colorado Stud. 
vol. 9 p. 75—89. 
Cohnheim, Otto (1). Zur Physiologie der Nierensekretion. In: 
Hoppe-Seylers Zeitschr. f. physiolog. Chemie vol. 80 p. 95—112. 
— (2). Über den Gaswechsel von Tieren mit glatter und quer- 
gestreifter Muskulatur. In: Sitzungsber. Heidelberg. Akad. Wiss. 
math. naturw. Kl. Jahrgang 1911 Abhandl. 31; 17 pp. und auch: 
Zeitschr. physiol. Chem. Bd.76 p. 298—313. 
Coker, R. E. siehe Boepple und Coker. 
Colgan, Nathaniel. Notes on the Development of Actaeonia, 
showing that A. corrugata of Alder and Hancock is but an immature 
stage of their Cenia (Actaeonia) cocksüi. In: Irish Naturalist vol. 21, 
p. 225—231. 
Colton, Harold Sellers. Lymnaea columella, and Self-fertilization. 
In: Proc. Nat. Sci. Philad. 1912 p. 173—183, 4 Figg. 
Conklin, Edwin 6. (1). Cell Size and Nuclear Size. In: Journ. 
experim. Zool. vol.12 p.1—98, 37 Figg. 
— (2). Body size and cell size. In: Journ. Morphol. vol. 23 p. 159 
—188, 12 Figg. 
— (3). The influence of yolk on the development of gasteropods. 
In: Proc. 7. Intern. Zool: Congr. Cambridge, Mass. p. 521—523. 
— (4). Karyokinesis and Cytokinesis in the maturation, fertili- 
zation and cleavage of Crepidula and other Gastropoda. In: Journ. 
Acad. Nat. Sci. Philad. (Ser. 2) vol. 12 p.1—121, 6 Taf. 
Connolly, M. (1). Note on the Existence of two Editions of 
Ferussacs Tableaux Systematiques. In: Proc. malac. Soc. London 
vol. 10 p. 53. 
— (2). A Revised Reference List of South African Non-marine 
Mollusca; with Deseriptions of New Species in the South African 
Museum. In: Ann. South Afric. Museum vol. 11 p. 59—306. 
Cooke, A. H. The Distribution and Habits of Alopia, a Subgenus 
of Clausiha. In: Proc. malac. Soc. London vol. 10, p. 90—94. 
Cooper, 3.E. (1). Association of Ancylus flwviatilis and Velletia 
lacustris. In: Journ. of Conch. vol. 13 p. 273, 
— (2). Variation in Littorina hitorea, L. In: Journ. of Conch. 
vol. 13 p. 340. 
Cori, Carl 3. Charakteristik der Fauna der nördl. Adria. In: 
Verhandl. 8. intern. Zool. Congress Graz p. 689—711. 
Cossmann, M. Essais de Paleoconchologie comparee (9. Livraison) 
(Mathildiidae, Scalidae, Turritellidae, Vermetidae, Caecidae). Paris 1912. 
Cottrell, A. J. Vascular System of Siphonaria obliquata Sowerby. 
In: Transact. and Proc. New Zealand Instit. 1911 vol. 44 p. 374—379, 
Fig. 1—4. 
Cowäry, E.V. The colour changes of Octopus vulgaris, Lmk. In: 
Stud. from Univers. of Toronto, Biol. Ser. No. 10, 1911 p. 1—53, 4 Taf. 
