316 HENRY B. WARD." 



fauna of a single region; similarly F. Smith, Kofoid (96) J. C. 

 Smith and Hempel in this country. Here also Garbini (94a), 

 Butschinsky. Among papers dealing with one or more subdi- 

 visions of the group may be noted Schaudinn, Frenzel (97b), 

 Schewiakoff (93), Seligo (93), Svec and France (97a). On the 

 Porifera Weltner (95), Hanitsch and V t 4ngel (97). 



Fuhrmann (94), Borelli, Szigethy, Vejdovsky, Volz and 

 Woodworth have contributed to a knowledge of the Turbel- 

 laria, while Bohmig and Montgomery deal with the Nemer- 

 tines. The results of Daday's work (97a), on Balaton Nema- 

 todes make one wonder whether these free living forms have 

 not been much neglected heretofore. 



On the Rotatoria, a most important plankton group, there 

 has appeared the recent valuable memoir of Weber. Wierzejski 

 (93), Levander (94b) and Daday (97b) have contributed to a 

 knowledge of the group in Europe, and Kellicott, Jennings and 

 Hempel in the United States. Here also Eckstein, Garbini 

 I'.'.^ai, Kertesz and Hood. Imhof (95a) and Walker treat of the 

 Molluscs in connection with freshwater investigations. Call dis- 

 cusses the relation of the molluscan fauna to different hydro- 

 graphic basins in a region belonging to several drainage areas. 



The splendid monograph of Piersig and the papers of 

 Koenike, Daday (97d) and Wolcott (98), together with briefer 

 articles by Soar and Nordenskiold comprise the studies on 

 EEydrachnids listed. On the entomology of a freshwater body 

 the work of Hart easily takes the first place; articles by Klap- 

 alek, Wolcott (94), and Garbini (95d) are also noted. 



Among the articles on the Crustacea, those of Garbini (95c) 

 and Wierzejski (95) are general in their scope. The Entomos- 

 traca have been studied by a host of investigators, among whom 

 may be noted Daday, de Guerne, Herrick, Mrazek, Poppe, 

 Richard, Rizzardi, Sars, Scott, Scourfield, Steuer, Turner, 

 VaVra and Wesen berg-Lund. On the Ostracoda particularly 

 are noted the works of Brady and Norman, Vavra, and in this 

 country Turner and Sharpe. 



The magnificent monograph of Schmeil on the Copepoda 



