48 BULLETIN OF THE 



3. Ueber Cijclas cornea, Lam. Franz Leidig, Miiller's Arcliiv, 1855, 

 pp. 47 - 66, PI. VI. Figs. 8-18. 



4. Sur Tanatomie des Cyrfenes. P. Fischer J. Conchyl. Vol. XI. 1863, 

 PI. IV.* 



5. Note sur I'anatomie des Cyrfenes Americaines. P. Fischer, Ann. Lye. 

 N. H. N. Y. Vol. X. 1872, PI. VIU. 



6. Beitrag zur Lehre von den embryonalen Bliittern bei den MoUusken. 

 M. Ganin Warschauer Universitats-Berichte, 1873, No. 1, 115 - 171. (Cyclas 

 (Sphcerium) considered.) 



7. Contributions to the Developmental History of the Mollusca. E. K. Lan- 

 kester, Ann. N. H. XIV. 81-86, and 458-460; also P. K. Soc. XXIL 

 232 - 238, 1874. (On the embryonic development of Pisidium.) 



8. On the Coincidence of the Blastopore and Anus in Paludina vivipara. 

 E. R. Lankester, G. J. aHcr. Sci. XV. 159-163 ; XVI. 377-385, PL XXV. 

 1875. (Pisidium considered.) 



9. Sketches to a scale of the Auditory Organs of certain Common Mollusl<s. 

 G.Gulliver, II. of Anat. and Physiol. 1869, 79-81, PI. 2, Fig. 3. {Cyclas 

 {SpJuerium) lacustris.) 



* Translated into English. Ann. Lye. N. H. N. Y. Vol. VIII. 1867. 



