INDEX. 



57g 



Xotes nil Species of Xi>rili Amer- 

 ican. I\'. On a New Lnnitiri- 

 culid Genus fiDni P'lorida, witli 

 Additional Xotes on tlie Ne- 

 plu'idial and Cii'cuiatory Sys- 

 tems of Mesoporodrilus asym- 

 metriciis Smith, 459 478. 

 explanation of plates in above 



article on, 477. 

 literature cited in al)o\e article 

 on, 476. 

 Oligoclnete parasite of Inionidie, 

 407. 

 aquatic, as food of Krpolxlella 

 punctata, 535. 

 Oligochcetes, aquatic, as food of 



licemopis marmoratis, 527. 

 Oligotricha, 308, 316, 335. 

 Opercularia, 311, 312, 340. 

 articulata, 340. 



food ,,f, 31 K 



irritahilis, 342. 



occurrence of, on \arions ani- 

 mals, 340. 

 food of, 340. 

 nutans found on a I'lanorbis, 340. 

 jugosa, 340. 

 Opuntiaspis proposed as new sub- 

 genus for Mytilaspis piulococcus, 



3Q7- 

 oregonensis, Diaptomus, ioq, i iq, 



124, 151, 170, 171, 183, 22(), 265. 

 ornata, Floscularia, 352,360. 



Xassula, 332. 



van rugosa, Clepsine, 487. 

 (Jrthocyclops, 2q, 51,64. 

 Orlonia preoccu]3ied ; replaced by 



Protortonia, 390. 

 Osborn, H. L., ondistomid parasite 



of Anodonta plana ( grandisi 



and Strophitus edentulus, 406. 

 Oscillaria, 19, 419. 

 Osphranticum,97, 104,225, 226, 229, 

 237. 



()s])liranticum ( 'o/i/Ifii/rcf. 



1 )ia|)toinus, and C\clops, i-elati\'e 



hardihood of, 100. 

 I )iai)tonnis, Epischura, and l.im- 

 nocalaiuis, discussion of 

 struct 11 ral similarities 

 and ilifferences indica- 

 tive of the relationships 

 of the genera, 226-228. 

 general bil^liography of 

 genera of, 185 ; additions 

 to, 268. 

 synopsis of the relation- 

 ships of the genera, 102- 

 105. 

 eggs of, 228. 

 labronectum, 227, 230 235. 



distribution, color, and varia- 

 tions of, 234. 

 on mo\ements of, 235. 

 Limnocalanus, and Kpischura, 

 The North American Cen- 

 tropagidie belonging to the 

 genera, 225 270. 

 on localities preferred bv, 226, 

 234- 

 ostreceformis, Aspidiotus, 398. 

 ovata, Cryptomonas, 313, 328. 

 Overton, E., lieitrag /ur Kennlniss 

 des (ionium pectorale, tiled, 287. 

 oxysternum, Metojutlia, 377. 

 Oxytrichidie, 336. 

 oxyuris, I-'.iiglena, 313, 324. 



pala, Brachionus, 353,354, 355, 378. 

 pallida, Rajihidiophrys, 313,322. 

 ])allidus, I )iai)lonnis, 100, 108,121, 

 124, 137, 144.1^3- 265. 



var. sicilis, Diaptomus, 122. 

 l)alustris, Premnodrilus. 451), 468, 



469. 472, 473. 474. 475- 

 Pandorina, 275, 276, 278, 280, 284, 



286, 287, 327, 419, 420. 423, 425, 



433. 43^' .437- 



