( 3 ) 



llolluscoida. 



o. Ttmicata. 

 Bentden, E. van, & C.'JrLra — Postembryonal Development of Pluillmia scahroides 795 



JocBDAiN, S. — The Synascidian Diphsomidse 796 



^. Polyzoa. 



Laskester, E. Rat— Po?j/20o » 797 



OsTEOCMOFF, A. — Metantorphosis of CypJionautes 798 



Arthropoda. 

 a, IzLsecta. 



Beattbegard, H. — Natural Development of Cantharis 798 



WiELOWiEFSKj, H. V. — Formation of Ova in Pyrrhocons 798 



KoBOTTfEFF, A. — Detelopment of Gryllotalpa 798 



\iAhhASE8, B..— Optic Ganglion of Aeschna 800 



PouLTON. E. B. — Nature of the Colouring of Phytophagous Larvse 801 



Dewitz, H. — How Insects adhere to flat vertical surf acea 801 



y. Prototracheata. 



Sedgwick, A. — Development of Peripaius capensis 802 



S. Arachnida. 



Dahl, F. — Season Dimorphism in Spiders 803 



Tbocessabt, E. L. — Sarcoptidx 803 



c. Omstacea. 



Claub, C. — Norphology of Cruetaaea .. 803 



Schhikewitsch, W. — Development of Astaeus 805 



Gbiffiths, a. B. — Extraction of Uric Acid Crystals from the Green Gland of Astacm 



fluviaiilis 805 



SAEfT-Lorp, R. — Parasites of Mmna vulgaris 805 



Pblsekeeb, P. — Nervous System of Apus 805 



Packard, A. S. — Embryology of Limulus polyphemus 806 



Dybowsri, B. — Crustacea of Lalie Baikal 807 



Smith, Sidney I. — New Crustacean 807 



Vermes. 



8AiKT-Lorp, R. — Organization of the Hirudinea 807 



Hatschek, B. — Devdopment of the Head of Polygordius 808 



Hallez, P. — Development of Nematodes 809 



Lecckabt, R. — DetelopmerU of Sphieruiaria bombt 810 



Leidy, J. — New BothriocepJuuus 810 



OuDEMANs, A. C — Circulatory and Nephridial Apparatus of the Nemertea ., .. 810 



Salessky, W. — Development of Monopora vivipara 811 



Beddakd, F. E. — Nephridia of Acanthodrilus sp, 813 



Zachabias, O. — Nephridia of Microstoma Uneare 813 



Buple^is-Goubet, G. — Fresh-water Monotidx 813 



Pebboncito, E. — Action of Sodium Chloride on Cercarim 814 



Gbaff, L. V. — New Species of Myzostoma 814 



Imhof, O. K — Pelagic and Fresh-^ater Rotatoria 814 



Echinodenuata . 



Cabpesteb, P. Hbbbebt — Vascular System of Echinoids 814 



'PzuRiKB.y'E.— Ambulacra of Ediinoderms 815 



Pbouho — Anatomy of DororAdaris 815 



'Dvsc\T!i,V.'M..—''Tag" of Cfilopleurus Mailhirdi 815 



CABi'EifTEB, P. H. — New Species of Metacrinvs ,. 815 



Coelenterata. 



Faubot — Adamsia palliala 816 



Porifera, 



BlABgirALL, W. — Cv-UiTderate Nature of Sponges 816 



Cakteii, H. — Circulation in S/Mtngida , 816 



GoETTE, A- — JJevelt/pnu.nt of S[nmgHla 817 



Potts, E. — New Freth-teater Sponge 817 



