Xll CONTENTS. 



PAGE 



Male Organs of the Decapodons Crustacea No. 4 420 



Central Nervous System of the Crayfish „ 422 



Heart of the Crai/fish and Lobster „ 423 



New Branchiopoda of the French Coasts „ 424 



On the Crustacea of the Mozambique „ 425 



Form of the Muscular Contraction in the Crayfish .. . . No. 5 562 



Amphipn and Pohjcheles ( Willemoesid) „ ■ 563 



Life-history of the Bopyridce ». . . „ 563 



The Nehaliad Crustacea as Types of a New Order .. .. No. 6 713 



Physiology of the Nervous System of the Crayfish .. ,. „ 713 



Influence of Heat on the Nervous Centres of the Crayfish,. „ 714 



Blood of the Lobster „ 715 



Observations on the Amphipoda ,, 715 



Contributions to the Natiiral History of the Caprellidoe ., „ 715 



Caprcllidiv of the Mediterranean „ 716 



Organization of the Phronimida „ 717 



Glands found in the Appendages of the Phronimida .. .. „ 719 



" House" of the Phronimida „ 719 



Some young Stages of Penceus Caramote „ 720 



Hermaphroditism of the Isopoda „ 720 



Asellus cavriticus „ 721 



New Peltidia „ 722 



Structure of the Nervous System of the Decapodous Crus- 

 tacea No. 7 872 



Physiology of Muscle aiid Nerve in the Lobster „ 872 



Action of Electric Currents on the Pincer of the Crayfish .. „ 873 



Atlantic Stalk-eyed Crustaceans „ 873 



Some New Cymothoida „ 874 



Trilobites and Limuli „ 874 



New Species of Chiroccphalus „ 874 



Reproductive Organs of Non-parasitic Copepoda ., . . • „ 875 



The Notodelphyidce ^^ 876 



New British Entomostraca „ 877 



Vermes. 



The Tomopteridm No. 2 1.55 



Abnor)nal Sexual Organs in the Horse Leech „ 156 



A New Rotifer — Anuraa longispina. {^ fig.) „ 157 



Trichina: ^^ 159 



Trichina-phobia at Berlin 159 



Function of Chlorophyll in the Green Planarice „ 161 



Development and Metamorphoses of Ta:nice „ 162 



Helminthology No. 3 283 



Excretory Apparatus of Solenophorus tnegalocephalus . , „ 284 



Anatomy and Embryogeny of the Tamiadce „ 285 



Parasites of the Lamellibranchiata „ 285 



New Turbellarian 286 



Digestive Organs of the Fresh-water Turbellarians .. .. „ 287 



Land Planarians 288 



Marine Planarians , 288 



Organization and Devdojmicnt of the Oxyunds , 289 



