CONTENTS. 



On the Significance of Conj ugation in the Infusoria, by Dr. A. Gruber ; 

 On the Influence of certain Rhizocephalous Parasites upon the 

 External Sexual Characters of their Host, by M. A. Giard ; The 

 Bed-Bug and its Odoriferous Apparatus, by M. J. Kiinckel . . 164 — 167 



NUMBER CV. 



XViri. On the Genus Hindia, Dune. By Dr. H. Rauff 169 



XIX. Prof. Glaus : a Rejoinder. By Prof. E. Ray Lankesteb, 

 M.A., LL.D., F.R.S 179 



XX. On a Collection of Lepidoptera made by Commander Alfred 

 Carpenter, R.N., in Upper Burma, in the Winter of 1885-86. By 

 Arthur G. Butler, F.L.S., F.Z.S., &c 182 



XXI. Note on Orbitolites italica, Costa, sp. (Orbitolites tenuissiraa. 

 Carpenter). By Henry B. Brady, F.R.S 191 



XXII. Larval Theory of the Origin of Tissue. By A. Hyatt . . 193 



XXIII. Preliminary Communication on some Investigations upon 

 the Histological Structure of the Central Nervous System in the 

 Ascidia and in Myxi>ie glutinosa. By Fridtjof Nansen 209 



XXIV. On the Genus Hindia and its Species. By Prof. P. Martin 

 Duncan, M.B. (Lond.), F.R.S., &c 226 



XXV. Contributions to the Study of the Littoral Fauna of the 

 Anglo-Norman Islands (Jersey, Guernsey, Herui, and Sark). By 



Dr. R. KcEHLEB. (Plate XI.) 229 



Freshwater Sponges from Newfoundland: anew Species, by Edward 

 Potts ; On the Biological and Morphological Value of the Bul- 

 billi of Fungi, by M. Hugo Zukal ; Note on the Arterial System 

 of the Scorpions, by M. F. Houssay 243 — 248 



NUMBER CVI. 



XXVI. Notes on the Palaeozoic Bivalved Entomostraca. — 

 No. XXII. On some undescribed Species of British Carboniferous 

 Ostracoda. By Prof. T. Rupert Jones, F.R.S., and James W. 

 KiRKBY, Esq. (Plates VI., VII., Via, & IX.) 249 



XXVII. Description of a new Species of Lamellaria from South 



A ustralia. By Edgar A. Smith 270 



XXVIII. Supplement to the Descriptions of Mr. J. Bracebridge 

 Wilson's Australian Sponges. By H. J. Carter, F.R.S. kc. 

 (Plate X.) : . . . . 271 



