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8. Lamellibranchiata. pagr 
Knoll, Ph. — Muscle-Fibres of Mollusca 49 
Molluscoida. 
а. Tunicata. 
Seeliger, O . — Origin of Peribronchial Cavity in Ascidian Embryos 50 
„ „ Formation of Mantle 50 
Hebdman, W. A . — British Tunicata 50 
Heidkn, H . — Ascidians of Minorca 51 
Bobgert, A . — New Doliolum * 51 
Arthropoda. 
Perrier, E . — Arthropoda 51 
Hansen, H. J . — Morphology of Crustacean and Insect Appendages 52 
a. Insecta. 
Haase, C . — Mimicry 52 
Patrizi, M. L . — Muscular Action in Bornbyx 52 
Auerbach, L . — Spermatozoa of Dytiscus 52 
Verhoeff, C . — Copulatory Organs of Male Hymenoptera 53 
Bordas — Male Genital Apparatus of Hymenoptera 53 
Ingenitzky, J . — Copulatory Organs of Libellulidee 53 
Lucas, R. — Mouth-parts of Trichoptera 54 
Boas, J. E. Y . — Stigmata of Larva of Melolontha 54 
Camerano, L . — Respiratory Movements of Coleoptera 55 
Scudder, S. H . — Orthoptera of Galapagos 55 
5. Arachnida. 
Sohimkewitsch, W . — Endosternite of Arachnida 55 
Bernard, H. M . — Stigmata of Arachnida 55 
Pococr, R. I . — Instincts of Common English Spiders 55 
Bernard, H. M .—Chernetidas 56 
Wagner, W . — Activity of Heart of Spiders 56 
Karpelles, L . — Anatomy of Bdella arenaria 57 
б. Crustacea. 
Parker, T. Jeffery, & J. G. Rich — Myology of Palinurus Edwardsi 57 
Bergh, R. S . — Germinal Area of Mysis 57 
Mrazek, Al . — Antennse of Cyclopidse 58 
Schmeil, O . — The Genus Cyclops 58 
Claus, C . — The Poritellidx 58 
„ New Observations on Cyclops 59 
„ Skeleton of Copepoda 59 
Brauer, A . — Ovum of Branchipus 59 
Braem, F . — The Genus Apus 60 
Vermes. 
a. Annelida. 
Malaquin, A . — Researches on Syllidex 60 
Mesnil, F . — Polydora 62 
Friend, H . — New Irish Earthworms 62 
Croockewit, J. M . — Jaws of Hirudinea 62 
Leuckart, R . — Infundibular Apparatus of Hirudinea 62 
Whitman, C. O . — Eye of Clepsine 62 
£. Nemathelminthes. 
Brauer, A . — Spermatogenesis in Ascaris megalocephala 63 
Hamann, O. — Schneider's Pore and (Esophageal Glands in Nematodes 63 
Reibisch, J . — Trichosomum strumosum sp.n 64 
Hamann, O . — History of Filaria uncinata 64 
Janet, C . — Nematodes of Pharyngeal Glands of Ants 64 
J anson — Filaria immitis in a Japanese Wolf 65 
Cerfontaine, P . — Trichinosis 65 
Kaiser, J. E . — Acanthocephala 65 
