48 BULLETIN OF THE 
3. Ueber Cyclas cornea, Lam. Franz Leidig, Müllers Archiv, 1855, 
pp. 47 - 66, Pl. VI. Figs. 8- 18. 
4. Sur lanatomie des Cyrénes. P. Fischer J. Conchyl. Vol. XI. 1863, 
PL IV 
5. Note sur lanatomie des Cyrénes Américaines. P. Fischer, Ann. Lyc. 
N. H. N. Y. Vol. X. 1872, Pl. VIII. 
6. Beitrag zur Lehre von den embryonalen Blüttern bei den Mollusken. 
iM. Ganin Warschauer Universitáts-Berichte, 1873, No. 1, 115 — 171. (Cyclas 
(Spherium) considered.) 
7. Contributions to the Developmental History of the Mollusca, E.R. Lan- 
kester, Ann. N. H. XIV. 81-86, and 458-460; also P. R. Soc. XXII. 
939 - 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. Mier. Sci. XV. 159-163 ; XVI. 377 - 385, Pl. XXV. 
1875. (Pisidium considered.) 
9. Sketches to a scale of the Auditory Organs of certain Common Mollusks, 
G. Gulliver, Il. of Anat. and Physiol 1869, 79-81, Pl. 2, Fig. 3. (Cyclas 
(Spherium) lacustris.) 
* Translated into English. Ann. Lyc. N. H. N. Y. Vol. VIII. 1867. 
