TITLES. 
Page 
Introductory Note . . , . . . . . . . vii 
Introduction . . . . . . . . . . I 
Polyzoa entoprocta and ctenostomata . . . . . . . . 13 
The mollusca of Lake Biwa, Japan . . . . . . . . . . 39 
Aquatic hemiptera from the Tale Sap in Peninsular Siam . . . . 75 
Aquatic oligochaeta from Japan and China . . . . . . . 83 
Hydrozoa and ctenophora . . . . . . . . . . . . jox 
Batrachia . . . . . . . . , . . , . . ug 
Hirudinea . . . . . . . . . . . . . . 157 
Mollusca nudibranchiata (ascoglossa) . . . . . . . . . . 177 
Brackish-water polyclads . . . . . . . . . . . . 183 
Sponges . . . . . . . . . . . . . . 193 
Crustacea decapoda and stomatopoda . . . . , . . . . . 217 
Mollusca of the Tai-Hu . . . . . . . . . . . . 299 
Echiuroids from brackish water with the description of a new species from the 
Andamans . . . . . . . . . . . . . . 321 
Les orthopteres cavernicoles de Birmanie et de la Peninsule Malaise . . . . 339 
The viviparous water-snail of Lake Biwa, Japan . . . . . , . . 397 
Mysidacea, tanaidacea and isopoda . . . . . . . . . . 403 
Amphipoda with notes on an additional species of Isopoda . . . . . . 435 
Fish of the Tale Sap, Peninsular Siam (Part I) . - . . . . 461 
„ (Part II) .. .. .. ..477 
Fish of the Tai-Hui, Kiangsu Province, China . . . . . . . . 503 
Revision of the Japanese species of the genus Corbicula . . . . . . 521 
Amphipoda of Tale Sap . . . . . . . . . . . . 531 
