TABLE OF CONTENTS. Xlll 



SECTION C. INVERTEBRATA. 



1. TUESDAY, 23 August. 



PACK 

 Prof. L. Plate.— Beitrage zur vergleichenden Anatomic der 



Chitonen . . .188 



Prof. L. Plate. — Chitonicium simplex, ein neuer Zellparasit 194 



Mr E. S. Goodrich. — New Type of Nephridium in Glycera . 196 

 Mr C. Rousselet. — Note on preserving Rotatoria . . 197 



2. WEDNESDAY. 24 August. 



Prof. Pelseneer. — L'utilite de I'uniformit^ d'orientation des 



figures zoologiques 199 



Prof. Pelseneer. — La condensation embryogdnique chez un 



Nudibranche . . . . . . . . . .199 



Prof. Vejdovsky. — Fertilisation of the Egg of Rhynchelmis . 200 



Prof. Vejdovsky.— New Integumentary Sense Organs of Rhyn- 



chobdellidae .......... 202 



Prof. Hickson. — Demonstration of the Medusae of Millepora . 202 



3. THURSDAY, 25 August. 



The section did not meet. 



4. FRIDAY, 26 August. 



Dr Zschokke. — Entozoen der aplacentalen Saugetiere . . 203 

 MM. Mesnil and Caullery.— Formes epitoques des Anndlides, 



et en particulier des Cirratuliens ; and .... 204 

 Demonstrations of the Monstrillidee, Copepods parasitic on 



Annelids, and of Metschnikovella, parasitic in Gregarines 220 



Prof. E. L. Mark. — A new type of Actinian . . . .221 



Mr F. W. Harmer. — The range in time and space of Fusus 



{Neptiinea) antiquus and its allies (Plate 3) • • . 222 



E. Perrier and M. A. E. Malard. — Les relations i 

 etablir entre les differents Laboratoires maritimes pour 

 r^tude de certaines questions de biologic gdnerale des 

 etres marins .......... 226 



Prof. W. Schewiakoff. — A new method of staining cilia, flagella 

 and other locomotor organs of Protozoa (with demon- 

 stration) 227 



M. Pierre Fauvel. — Les stades post-larvaires des Ar^nicoles . 229 

 Prof. L. Roule. — La structure de la larve Actinotroque des 



Phoronidiens .......... 230 



