563 



Eisen, G. — Continued. 



On the Anatomy of Sutroa ros- 

 trata, a New Annelid of the 

 Family Lunihriculina, cited, 

 471. 

 on the application of terms 

 gastric and perigastric, 469. 

 on the circulatory system of 



Eclipidrilus frigidus, 474. 

 on the prt)State glands of 



Eclipidrilus frigidus, 464. 

 Pacific Coast OligochcCta. I., 

 cited, 462, 464, 471. 

 eiseni, Diaptomus, q8, loi, no, 115, 

 162, 166, 183. 

 Sparganophilus, 442. 

 Eggs of Aspidiogaster conchicola, 

 404. 

 of Atax, 407, 414. 

 of Cotylaspis insignis, 405. 

 of frogs eaten by Macrobdella 



decora, 511. 

 of Rotifera, 347. 

 of Sacculus, 366. 

 ehrenbergii, Gastropus, 368. 

 eichhornii, Actinosphierium, 313, 

 322. 

 Stephanoceros, 345. 

 elegans, Callidina, 364. 

 Cle])sine, 493. 

 Eudorina, 273, 277, 286, 431, 435, 



437- 

 Plagiola, 401, 403, 406, 409, 410, 



412, 413, 416. 

 Raphidiophrys, 322. 

 Unio, 403. 

 ellipsis, Lanipsilis, 401, 403, 405, 

 409, 410, 412, 413, 416. 

 Unio, 403. 

 elinguis, Nais, 443. 

 elliptica, Metopidia, 377. 

 Elodea, 354. 



elongata, Mastigocerca, 371. 

 Embolocephalus, 453, 456. 

 multisetosus, 443. 



Embolocephalus multisetosus 

 — Continued. 

 descri|)tion of, 452-455. 

 relation of, to other Tubificidas, 

 456. 

 plicatus, 456. 

 velutinus, 456. 

 emissarius, Phreoryctes, 442. 

 Enchelidte, 330. 

 EnchytrceidcC, 441. 



found in Illinois, 442. 

 Engstrom, Ella \'., 441. 

 Entomostraca, 19,97, 225, 228, 35 r, 

 421. 

 species of Rhabdostyla found on, 

 340. 

 Eospora, 370. 



aurita, 324, 370- 

 Epischura, 97, 103, 166, 225, 226, 

 237, 249-251, 267. 

 distribution of, 251. 

 doubtful species of, 265. 



discussion of published 

 figures and descriptions 

 of, 266, 267. 

 eggs of, 228. 

 fluviatilis, 226, 250, 265-267. 



synonymy of, 266. 

 key to the species of, 251. 

 lacustris, 228, 229, 249, 250, 251, 

 252, 260-265. 

 associate species and distribu- 

 tion of, 264, 265. 

 compared witli E. ne\adensis, 

 264. 

 with E. nordenski()ldii, 254, 

 255, 256. 

 on descriptions and figures of, 

 263, 264. 

 Limnocalanus, and Osphranti- 

 cum. North American Centrti- 

 pagidae belonging to the gen- 

 era, 225-270. 

 nevadensis, 98, 168, 229, 249, 250, 

 251, 256-260, 262. 



