25 Cntst. 
Subject Index. — Ethology. 
2619 
Biologie von Crangon vulgaris ; Bree- 
men, 46 : Redeke, 295. 
Ein Beitrag iiber den krebsartigen 
Kiemenfuss ; Wittmann, 381. 
Biology, seasonal periodicity, &c., of 
Cladocera, Copepoda, Ostraeoda ; Thi4- 
baud, 353. 
Biology of freshwater species of 
Cladocera, Copepoda and Ostraeoda ; 
Thi^baud, 352 : of Copepoda ; Pesta, 
281 : Wesenberg-Lnnd, 375. 
Oecology of Swiss Isopoda ; Carl, 73. 
Phenology, &c. 
Zeit des Anftretens, Sehizopoda ; 
Linko, 215. 
Distribution and migrations of 
Cancer pagurns ; Pearson, 272. 
Vertical distribution in the Caspian, 
Mysidae ; Bars, 315. 
Periodic migrations of Copepoda to 
lower levels ; Loeb, 219. 
Sexual Dimorphism, &c. 
Eualns and Faralithodes ; Brashni- 
kov, 41 : Amphtpoda ; Brliggen, 55. 
Secondary sexual ' characters of Pan- 
dalns ; Wollebaek, 384. 
Proportion of sexes in Nephrops 
norvegicus', M’Intosh, 247. 
Sur la presence de males en exces 
che7, deux especes de Synalphees ; 
Couti^re, 102. 
Habitats. 
Cavernicolous Crustacea ; Jeannet & 
Racovitza, 186: Racovitza, 290: Carl, 
72, 74 : Schaefferna, 318 : Grdter, 152a. 
General notes on plankton Crustacea ; 
Senna, 329. 
Conditions of life of plankton ; We- 
senberg-Lund, 375. 
Origin of fresh-water plankton ; 
Wesenberg-Lund, 375. 
Freshwater plankton; Kofoid, 197. 
Plankton, Obersee bei Reval ; Schnei- 
der & Levander, 325. 
Plankton Cladocera ; Woltereck, 387. 
Plankton of North Sea ; Breemen, 46a. 
Plankton of Atlantic ; Cleve, 95. 
Plankton, quantitative records ; Herd- 
man & Scott, 172. 
Quantitative Planctonbestimmung im 
Pestowo-See, Copepoda, Cladocera ; 
Heyneman, 174. 
Planktonzusammensetzung in Abhang- 
igkeit vom Typus des Gewassers, Clado- 
cera ; Novikov, 254. 
Natiirliche Existenzbedingungen, 
Gammarus pulex ; Chm^levskij, etc., 
91. 
Vertheilung auf verschiedene Typen 
von Teichen, Cladocera ; Voronkov, 
Novikov, Udalicov, 368. 
Aufenthaltsorte, Mesomysis volgensis ; 
Tretjakov, 357. 
Vorkommen bei verschiedenen Salz- 
gehalt des Wassers, Copepoda ; Meissner, 
241. 
Crustacea of mountain streams ; 
Steinmann, 343, 344. 
Brackish water Crustacea in Belgium ; 
Loppens, 223. 
Crustacea of subterranean water ; 
Braun, 42 : Holmes, 179. 
Habitats of Crustacea in fjords near 
Troms0 ; Kioer, 192. 
Symbiosis. 
Contribution £l Petude des rapports 
ethologiques des crabes et des Acti- 
nies ; Pi^ron, 283. 
Sur les commensaux du Bernard 
PHermite; Chevreux, 84. 
Commensals of Cladocera ; Chatton, 
80. 
Crustacean commensals of Echino- 
derma ; P^rez, 273. 
Symbiosis of Diogenes varians and 
mussels ; Hansemann, 165. 
Commensalisme d’un crabe portunien ; 
Bouvier, 29. 
Parasitism. 
Isopod parasites of crab ; Richardson, 
298 : of Penaeidea ; Richardson, 297 : 
of Calanus gracilis ; Pesta, 278 ; of 
Synalpheus; Coutifer? 100. 
Isopod parasites of fishes ; Linton, 
216. 
Parasitism of Gyge hranchialis] Lo 
Giudice, 222. 
