2 
INVERTEBRATA, 
Mollusca. 
Sara sin, 1’. & F . — Freshwater Molluscs of Celebes 
y. Gastropoda. 
Lacaze-Duthiers, Henri de — Nervous System of Gasteropods 
Willcox, M. A. — Anatomy of Acmxa fragilis 
Biedermann, W., & P. Moritz— Cellulose-dissolving Ferment in Snail 
Viguier, Camille — Development of Tethys fimbriata 
Arthropoda. 
a. Insecta. 
Forel, Auguste — Parabiosis a mong Ants 
Willey, Arthur — Embryonic Membranes of Insects 
Folsom, J. W . — Japanese Collembola 
Cuenot, L . — Absorption in the Cockroach 
Petrunkewitsch, Alexander — Digestion in Cockroaches 
Voinov, D. N. — Mid-gut of Dragonflies 
Krauss, H. A. — Condylopalama agilis Sund. 
Urech, Friedr. — Colour-Variation in Vanessa io and urticx .. 
Montgomery, T. H. — Spermatogenesis in Pentatoma 
5. Araclimda. 
IIentschel, E . — Eyes of Spiders 
Pocock, R. I . — New Stridulating Spider 
e. Crustacea. 
STAnR, Hermann — Chelx of the Lobster 
Norman — British Isopod Chelifera 
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280 
Annulata. 
Eisig, Hugo — Development of the Capitellidx 280 
Haase, H . — Regeneration in Tubifex 281 
Kunstler & Gruvel — Enigmatical Bodies in Body-cavity of Ophelia 282 
Kramer, Augustin — Researches on “ Palolo ” 282 
Platyh.elminth.es, 
Coe, W. R . — Maturation and Fertilisation in Cerebratulus 288 
Cohn, Ludwig — Central Nervous System of Cestoda 288 
Luiie, Max — Parasites from Berbera 284 
Kofoid, C. A . — Trematodes in Freshwater Mussels 284 
Jacoby, Severin — Variation in Distoma 284 
Pratt, H. S . — Appendiculate Distomes 284 
Galli-Valerio, Bruno — Notes on Parasites 285 
Krsmanovie. K . — Structure of Geoplana 285 
Incertse Sedis. 
Blociimann, F . — Larva of Discinisca 285 
Echinoderma. 
Bordas, L . — Reproductive Organs of Holothurians 285 
Farquiiar, H . — Echinoderm Fauna of Neiv Zealand 286 
Ccelentera. 
Schaeppi, Theodor — Nervous System of Siphonophora 286 
Agassiz, A., & A. G. Mayer — Fiji Acalephs 287 
Bourne, G. C. — Skeleton- formation in the Anthozoa 287 
Porifera. 
Evans, Richard — New Sponges 288 
Protozoa. 
Hempel, A . — Protozoa of Illinois River and Adjacent Lakes 288 
Schoenichen — Galvanotaxis of Amoeba 288 
Wallengren, Hs. — Conjugation in Vorticellids 288 
Kunstler, J . — Trichomonas intestinalis Leuckart 289 
Doflein, Fr. — Myxosporidia 289 
