CONTENTS OF VOL. XI. VII 



Page 

 LEPIDOPTERA. 



Papilio {Ornitlwptera) Ritsemae , n. sp. De'crit par P. C. T. Snellen. . . . 153. 



HEMIPTERA. 



Descriptions of new Malayan Cicadidae belonging to the Leyden Museum. Bv 



W. L. Distant 87. 



ANOPLURA. 

 Description d'une nouvelle Pédiculine. Par E. Piaget. (Plate 2, fig. 2) . . . 35. 



CRUSTACEA. 



Sur quelques Isopodes du Musée de Leyde. Par Adrien Dollfus. (Plate 5). . 91. 



MOLLUSCA. 



Description of a new species of Drillia. By M. M. Schepman. (With three 



woodcuts) 239. 



VERMES. 



On a remarkable Syllis-huA with extrudible segmental organs. By Dr. R. Horst. 

 (Plate 1, and plate 2, fig. 1) 11. 



On Filaria-specimens from the right ventricle of the heart of Felis onca. By 



Dr. R. Horst 16. 



Contributions towards the knowledge of the Annelida Polychaeta. By Dr. 



R. Horst. — II. (Plate 3) 37. 



Contributions towards the knowledge of the Annelida Polychaeta. By Dr. R. 

 Horst. — III. (Plate 7 and 8) 161. 



