( 3 ) 



7< Frototracheata. paqb 



SoLATEB, W. L, — Peripatus of British Guiana 747 



S. Arachnida. 



Lendl, A. — Homologues of Arachnid Appendages .. 747 



Kabfelles, L. — Interesting New Mite 748 



6. Crustacea. 



Ra'Witz, B. — Green Oland of the Crayfish 748 



GiABD, A. — Castration of Decapodous Crustacea by parasites 750 



Vermes. 

 R. Annelida. 



Chworostansky, C. — Development of Ovum of Hirudinea 750 



Beddabd, F. E. — New Genus of LumhricidsB , 751 



ScHARPP, R. — Ctenodrilus parvulus 751 



BousFiELD, E. C. — Natural History of the Genus Bero 752 



JocBDAN, C. — Histology of the Integument and Sensory Appendages of Hermione 



hystrix and Polynoe Gruhiana 752 



Joteux-Laffuie — Chlonema Dujardini and SiphoHOstoma diplochaitos 753 



/3. Xenxathelmintlies. 



Bitzbma Bos, T. — Tylenchus devastatriz 753 



y. Platyhelmintlies. 



HuBBECHT, A. A. W. — Relation of the Nemertea to the Vertehrata 754 



BoLLES Lee, A. — Spermatogenesis in Nemerteans 755 



JoxTBiN, L. — Anatomy of Langia ohocldana 756 



Hallez, P. — Development of Fresh-water Bendroeoda 757 



ZscHOKKE, F. — Helminthological Observations 757 



S. IncertSB Sedis, 



Plate, L. — Ectoparasitic Rotifers from the Bay of Naples 757 



Wagneb, F. V. — Myzostoma Bucchichii 758 



EcMnodermata. 



Pbeyeb, W. — Movements of Star-fishes 75g 



Koehleb, R. — Circulatory Apparatus of Ophiurids 761 



Haacke, W. — Radial Symmetry of Echinoids 762 



Wachsmuth, C, & F. Spbingee — Morphological Relcdions of Summit-plates in 



Blastoids, Crinoids, and Cyslids 763 



Semon, R. — Synaptidse of the Mediterranean 764 



Ccelenterata. 



Lendenfeld, R. V. — Stinging-cells 765 



Mayer, P. — Formation of fresh stalks in Tvhularia 765 



Fewkes, J. W. — New Rhizostomatous Medusa 765 



KoBOTNEFF, A. — Anatomy and Histology of VeretiUum 765 



Protozoa. 



Maupas, E. — Conjugation of Ciliate Infusoria 766 



Maskell, W. M. — New Fresh-tcater Infusoria 767 



Eberth, C. J. — Thalassicola cssrulea 767 



Gecbee, A. — Artificial Bevelopment in Actinosphmrium 768 



Dangeabd, P. A. — Researches on Lower Organisms 769 



RoBOz, Z, v. — Structure of Gregarines ,. 769 



Henneguy, L. F. — Spore-formation in Gregarines 770 



MoNiEZ, R. — Revision of the Microsporidia 77O 



h 



