INDEX OF GENERA AND SPECIES 761 
Notommata aurita, 322. 
hrachyota, 322, 
forcipata, 322. 
pumila, 300, 320, 322. 
torulosa, 322. 
tripus, 322. 
Notops hyptopus, 321. 
Nuphar, 396. 
Nyviphcea alba, 327. 
^M^ca, 170, 194, 214, 228, 230, 234, 243, 
244, 248, 327. 
lutea, var. intermedia, 170, 256. 
vumila, 170, 194, 204, 327. 
(Ecistes brachiatus, 320. 
crystallinus, 320. 
serpentinus, 320. 
(Edogonium, 194, 235, 358. 
capillare, 190, 217, 329. 
(Enanthe CTocata, 173, 192, 328. 
Ophridium versatile, 325. 
Ophi-yoxus gracilis, 299, 315, 316. 
Orestias agassizi, var. inornata, 572. 
Orthoti'ichum rupestre, 187. 
Oscillatoria, 284, 333, 358, 395. 
Oic^ts ovalis, 313. 
Oxycthira, 315, 334. 
Palcemo7i, 355. 
Palcemoncetes, 367. 
Pallasiella quadrispinosa, 307. 
Paludicella ehrenbergii, 317. 
Paludina, 355, 368. 
Pandorina morum, 332. 
Paramcecium, 356. 
Parmelia lanata, 190, 224. 
omphalodes, 190, 218, 224, 226. 
Parnassia palustris, 172, 214. 
Patella, 355. 
Paulinella chromatophora, 326. 
Pedalion, 400. 
Pediastrum, 358. 
horyanu7n, 332. 
duplex, 332. 
Pedicularis palustris, 174, 208, 214, 217. 
Pellia calycina, 190. 
epiphylla, 190. 
Penium spirostriolaturti, 330 . 
Peplis portula, 170, 220, 242, 258, 327. 
Peratacantha truncata, 317. 
Peridiniam, 280, 282. 
divergens, 402. 
pyrophorum, 402. 
tabulatum, 282, 334. 
Phalaris armidinacea, 183, 193, 218, 230, 
242, 248, 249, 328. 
Philodina aculeata, 320. 
acuticornis, 320. 
alpium, 320. 
brevipes, 320. 
brycei, 320. 
citrina, 320. 
decurvicornis, 320. 
erythrophthalma, 320. 
flaviceps, 320. 
hamata, 299, 320. 
humerosa, 320. 
Philodina laticeps, 299, 320. 
laticornis, 299, 320. 
macrostyla, 320. 
megalotrocha, 320. 
nemoralis, 320. 
^Zeua, 320. 
roseola, 320. 
ricgosa, 320. 
Philonotis calcarea, 187. 
fontana, 187, 204, 329. 
Phoca baicalensis, 603. 
Phodophyra cyclopum, 326, 327. 
361. 
Phraguiites, 385, 391, 396. 
communis, 166, 183, 194, 202, 204, 206, 
207, 210, 214, 217, 221, 222, 228, 
230, 231, 232, 234, 235, 236, 237, 
238. 239, 242, 243, 244, 248, 249, 
255, 256, 258, 328. 
Pilularia globiUifera, 184, 195, 243. 
Piona aduncopalpis, 313. 
carnea, 313. 
fuscatus, 313. 
obturbans, 313. 
paucipora, 313. 
313. 
Pionacercus, 313. 
Pisidium, 289, 292, 368. 
jmsillum, 292, 313. 
Placocysta lens, 326. 
spinosa, 326. 
Plagiostoma lemani, 306. 
Planar ia, 356. 
Piano rbis, 355, 369. 
contortus, 313. 
Plantago lanceolata, 175. 
Platambus maeulatus, 334. 
Platysma glaucum, 190, 224. 
Pleurotcenium coronatum, 330. 
nodosum, 330. 
Pleurotrocha parasitica, 322. 
Pleuroxus Icevis, 317. 
trigonellus, 317. 
uncinatus, 317. 
Pleurozia cochleariforinis, 189. 
Plcesoma hudsoni, 278, 324, 409. 
triacanthum, 324. 
truncatum, 278, 324. 
Plumatella emarginata, 317. 
fruticosa, 317. 
punctata, 317. 
7'epens, 317. 
Polyarthra euryptera, 277, 300, 321. 
platyptera, 211, 282, 285, 321, 400, 
429. 
Polycelis nigra, 318. 
Polychcvtuscollinsi, 300, 322. 
subquadratus, 800, 322. 
Polycystis goettei, 319. 
Polygonum amphibium, lib, 194, 199, 
208, 214, 248, 249, 250, 251, 254, 
255, 257, 328. 
amcalare, 176. 
hydropiper, 175, 328. 
persicaria, 176. 
Polyphemus, 283, 285. 
pedicuhis, 111, 317, 336. 
