Xx 
CONTENTS. 
Brook, G . — New Species of Madrepora 
Antipa, G . — Neiv Species of Drymonema 
Gunther, R. T . — Medusa of Lake Tanganyika 
Beecher, C. E . — Development of a Palseozoic Poriferous Coral 
„ „ Symmetrical Cell-development in Favositidae 
Brook, G . — Affinities of Madrepora 
Appellof, A . — Edwardsix 
Greig, J. A . — Norwegian Pennatulida 
Chapeaux, M . — Organs of Relation of Hydromedusx 
Sigerfors, C. P. — Formation of Blastostyle Buds in Epenthesis McCradyi 
Bigelow, R. P . — Polydonia frondosa 
Murbach, L . — Development of Stinging Organs in Hydroids 
Claus, C . — Development of the Scyphostoma 
Antipa, Gr . — A new Stauromedusa 
Hartlaub, C . — Classification of Anthomedusx 
Zoja, R . — A new Hy droid 
Brook, G . — Catalogue of Madreporarian Corals 
Carlgren, O . — Septal Musculature and (Esophageal Grooves in Anthozoa 
„ „ Brood-chambers in Actiniae 
Goette, A . — Comparative Embryology of Scyphomedusx 
Hickson, S. J . — Early Stage of Distichopor a violacea 
Boveri, T . — Gyractis 
Alcock, A . — Corals fvom Indian Seas 
Hedlund, T . — Muriceidae 
Bedot, M . — Revision of the Forskaliidx 
Brook, G . — Catalogue of Madreporarian Corals 
Porifera, 
Bidder, G. — Flask-shaped Ectoderm and Spongohlasts of one of the 
Keratosa 
Lendenfeld, R. v . — Hexaceratina 
Vosmaer, G. C. J . — Morphological Value of the Terms “ Osculum” and 
“ Pore ” in Sponges 
Delage, Yves — Embryology of Sponges 
Maas, O . — Metamorphosis of Esperia 
Zykoff, W . — Development of Ephydatia from the Gemmules 
Topsent, E . — New Sponges from the Mediterranean 
Dendy, A . — Australian Calcarea Heterocoela 
Topsent, E . — Sponges of the “ Hirondelle” 
Weltner, W . — Gemmules of Spongillidae 
Dendy, A . — Structure and Classification of Calcarea Heterocoela 
Topsent, E . — Histology of Sponges 
„ „ Notes on Sponges 
Protozoa. 
Chapman, F. — Foraminif era from Chalk of Taplow 
Railliet, A., & A. Lucet — Notes on Caecidia 
Bertram — Sarcosporidia and Parasitic Sacs in Body-cavity of Rotifers .. 
Zacharias, O . — Infusorian Skin Parasite of Freshwater Fishes 
Klebs, G. — Flagellata 
Haswell, W. A. — Flagellate Infusorian as Intracellular Parasite .. 
Levander, K. M. — Shell of Glenodinium 
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