586 



INDEX. 



Rot if era — Continued. 



as food of Protozoa, 311. 



diagram of types of trophi of, and 

 a summary of their distinguish- 

 ing features, 344, 345. 



eggs of, 347. 



food of, 324. 



quantity of, 345. 



relations of, 350. 

 geographical distribution of, 350. 

 littoral and pelagic forms of, 



353- 



local distribution of, 353-355. 

 methods of capture and study of, 



348-35°- 

 modes of locomotion, 356. 

 seasonal distribution of, 351-353. 

 synopsis of the families of, 356- 



359- 

 vitality of, 347. 



geographical distribution of, 350. 

 roubaui, Diaptomus, 166. 

 Rousselet, C. F., 350. 



On a Method of preserving 



Rotatoria, cited, 304. 

 Second Note on a Method of 

 preserving Rotatoria, 

 cited, 304. 

 rubens, Brachionus,37g. 

 rubiginosa, Quadrula, \o\, 403, 406, 



409, 410, 412, \\\. 

 rubiginosum, Coelostoma, 390. 

 rubiginosus, Unio, 403. 

 rugosa, Alasmodonta, 401, 403, 408, 

 400, 410, 412. 

 Margaritana, 403. 

 Opercularia, 340. 

 Placobdella, 481, 482, 484, 487. 



Sacculus, 366. 



viridis, 366. 

 Sagittaria, 302. 



variabilis, 444. 

 salinus, Diaptomus, 98 



Salpina, 373. 

 eustala, 373. 



seasonal distribution of, 352. 

 Salpingceca, 329. 

 minuta,329. 

 found on loricaa of Dinobryon 

 sertularia, 329. 

 Salpingoecinae, 329. 

 Salpinidae, 358, 373. 

 saltator, Pedetes, 368. 

 sanguineus, D i a p to m us, 97, 1 12, 



117, 129, 133, 160, 166, 183. 234. 

 sanguisuga, Haemopis, 531. 

 Sarcodina, 305, 306, 314, 317. 

 Sars, G. O., 29, 31, 7,7, 98, 229, 236, 

 242. 

 on second pair of antennae 

 of Limnocalanus macrurus 

 and of L. grimaldii, 236. 

 Oversigt af de indenlandske 

 Ferskvands copepoder, 

 cited, 236, 242. 

 Pel'agic Entomostraca of the 

 Caspian Sea, cited, 242. 

 Say, Thomas, Narrative of Expe- 

 dition to the Source of the St. 

 Peter's River, etc. Appendix of 

 Vol. II., cited, 509, 532. 

 Scaridium, 373. 



longicaudum, 373. 

 Scenedesmus, 421. 

 Schacht, F. W., 31. 



The North American Cen- 

 tropagidae belonging to the 

 Genera s p h r a n t i cum, 

 Limnocalanus, and Epi- 

 schura, 225-269. (Special 

 index, p. 270.) 

 The North American Species 

 of Diaptomus, 97-207. 

 (Special index, 208.) 

 Schewiakoff, WL, Qeber die geo- 

 graphische \*erbreitung der 

 Slisswasser-Protozoen, cited, 

 320, 340. 



