CONTENTS. XI 



PAGE 



Colmr-sense in Crustacea .- Part 1 iS 



Germs of Artemia salina „ 43 



New and rare French Crustacea. {Fig. 28) Part 2 186 



New British Cladocera from Grasmere Lake , 187 



The Entoniscida „ 188 



The Bopyridce _ „ 188 



Limulus a Crustacean . . Part 3 337 



Segmental Organs in Isopoda „ 337 



Bopyridce j> 338 



Classification of the Brain of Crustacea Part 4 503 



Unpaired Eye of Crustacea „ 504 



Blood of the Crustacea „ 504 



Pyloric AmpullcB of Podophthalmccte Crustacea ,, 505 



Heterogeny of Daphnia „ 506 



Notodelphyidce .. „ 506 



Organization of Trilobites » 508 



Perception of Colour by Crustacea Part 5 615 



Mediterranean Crustacea „ 615 



North American Crustacea ,, 617 



New Copepoda ,, 617 



Ontogeny of Fresh-ioater Copepoda Part 6 776 



Aberrant Oniscoids „ 777 



Blind Subterranean Crustacea in New Zealand „ 778 



Vermes. 



Origin of the Central Nervous Sy stern of the Annelida . . Part 1 44 



Swim-bladder -like Organs in Annelids „ 44 



Development of Polygordius and Saccocirrus „ 46 



Termination of Nerves in the Voluntary Muscles of the 



Leech ,, 46 



The Echiurida .. „ 47 



Segmental Organs and Genital Gland of some SipuncuUda „ 47 



Anatomy and Histology of Sipunculus nudus „ 48 



Sternaspis „ 48 



Hamingia glacialis , 50 



Echinorhynchus „ 51 



Proscolex of Bilharzia hcematobia „ 51 



Nervous System of Cestoda „ 51 



Development of the Ovum of Melicerta „ 53 



Anatomy and Histology of Scoloplos armiger Part 2 188 



Parasitic Eunicid „ 190 



Development of Anguillula stercoralis , 191 



Cercaria with Caudal Setae „ 192 



New Type of Turbellaria ,, 192 



Systematic Position of Balanoglossus , 194 



Nervous System of Platyhelminthes ,, 194 



Structure of Gunda segmentata, and the Relationships of 



the Platyhelminthes with the Ccelenterata and Hirudinea „ 197 

 Peculiar Mode of Copulation in Marine Dendroccela .. .. Part 3 340 



Classification of the Nematohelminthes 340 



