CONTENTS. XV11 



PAGK 



Boveri, Th. — Differences in the Chromosomes of Sister- germ-cells 531 



Taniguchi, N. — Filaria Bancroft 'i 65 ( 



Metcalf, Haven — Nematode associated with Decay in Plants • 54 



Loos, A. — Structure of Filaria loa 654 



Sala, L. — Peculiar Structure of Epithelial Cells of Ovarian and Spermatic Tubes 



of A scar ids 654 



Platyhelminthes. 



Chichakoff, G. — New Species of Phagocata Ledy 65 



Bohn, Georges — Oscillatory Movements of Convoluta roscofensis 185 



Laidlaw, F. F. — Pension of Classification of Polyclad 'J urbellarians 185 



Zykoff, W.— Structure of Mesostoma nasonoffii Graff 185 



Ball & Marotel — Cysticercus cellulosse on Dog's Brain 185 



Zschokke, F. — Cestodes of South American Marsupials 185 



Clero, W. — Parasites of Ural Birds 186 



Stevens, N. M. — Development of Planaria simplUsima 310 



Mattieben, E. — Early Development of Freshwater Dendrocoelida 310 



Warren, E. — Structure and Development of Distomum cirrigerum 311 



Bresslau, E. — Development of Turbellarians 416 



Stafford, J. — Trematodes from Canadian Fishes 417 



Fuhrmann, O. — Cestode with Separate Sexes 417 



„ „ Fresh-water Representative of a Marine Genus of Turbellaria . . 417 



Moll, Camillo — Terrestrial Planarians from North-East Africa 532 



Ssinitzin, D. — Sense-Organs in Digenetic Trematodes 532 



MacCallum, W. G. — Echinostomum garzettm 532 



Fischoeder, F. — Three Species of Paramphistomum from Mammals 532 



Janicki, C. von — Cestode* from Mammals 533 



Fuhrmann, O. — A Dioecious Cextode 654 



Hein, W. — Epithelium of Trematodes 655 



Ward, Henry B. — Determination of Human Entozoa 655 



Polyzoa. 



Uousselet, C. F. — Fresh-water Poly zoo'n from Rhodesia ... 417 



Maple8tone, C. M. — Tertiary Polyzoa of Victoria 417 



Incertse Sedis. 



Ikeda, Iwaji — Gonads of Phoronis 65 



ineresheimer, E. — Lohmannia catenata, g. et sp. n 186 



Caullery, Maurice, & Felix Mesnil — Pelmatosphmra 311 



Cowles, R. P. — Body Cavities and Nephridia of Actinotrocha 418 



Schultz, E. — Regeneration in Phoronis Mull eri 418 



Spengel, J. W. — Ptychodera flava funafutica 418 



Cowles, It. P. — Development of Blood- Vessels and Blood-Corpuscles in the Actino- 

 trocha Larva ^ 418 



Neresheimer, E. — Lohmanella catenata .. 419 



Spengel, J. W. — Anatomy of Ptychodera erythrsea 533 



(alvet, M. L. — Geographical Distribution of Marine Bryozoa 533 



Lang, W. D. — Jurassic Polyzoa 533 



Fowler, G. H. — Notes on Hhabdopleura Normani 655 



Ulrich, E. 0., & B. S. Bassler— Revision of Palasozoic Bryozoa 655 



Rotatoria. 



Bryce, David— New Species of Philodina 65 



Marks, K. I., & W. Wesche— New Male Rotifers 65 



Lauterborn, Bobert — Variation Cycle of Anurssa cochlear is 65 



Daday, E. von — New Rotifers 66 



Dec. 21st, 1904. b 



