INDEX OF GENERA AND SPECIES 
Acanthocystis cluctophora, 326. 
myriospina, 326. 
turfacea, 326. 
Acantholeberis curvirostris, 316. 
Achnanthes exilis, 333. 
Achtheres, 368. 
percarum, 316. 
Acineta elegans, 327. 
Acoperus harpce, 316. 
Actinophrys sol, 326. 
Actmosphce7'ium, 356. 
eichhorni, 326. 
AcUneta barbata, 321. 
gracilis, 321. 
tuberculosa, 321. 
mf/a, 321. 
u^olosoma, 318. 
ehrenbergi, 318. 
Agrostis vulgaris, 183. 
Alhertia bernarcli, 300, 321. 
intrusor, 300. 
Aledoriajubata, 190, 210, 224. 
Alectorolophus, 424. 
Alisma plantago, 166, 176, 193, 214, 253, 
328. 
ranunculoides, 176, 217, 233, 236, 259. 
Alnus glutinosa, 176, 243. 
Alonella excisa, 317. 
nana, 317. 
Alonopsis elongata, 278, 316. 
Alopecurus geniculatus, 183. 
Amblystegium scorpioicles, 385. 
^ mmopMla- arundinacea, 246. 
Amoiha, 356, 364. 
granulosa, 325. 
radiosa, 325. 
Amphileptus gigas, 324. 
Amphioxus, 355. 
Amphipleura pellucida, 281. 
Anabmna, 282, 284, 358. 
circinalis, 191, 333, 404. 
fios-aqum, 333. 
flos-aqucc, var. circinalis, 251. 
Anacharis, 258. 
alsinastrum, 176, 195, 242, 255, 259. 
Anagallis tenella, 175, 234. 
Anapus testudo, 324. 
Ancylus, 369. 
fluviatilis, 313. 
Angelica sylvestris, 173. 
Anodon, 368, 371. 
Anodonta cygnea, 227, 296, 313. 
Antennai'ia dioica, 192. 
Anthelia julacea, 189, 223. 
Anthrenus scrophularice , 421. 
Anurcca, 408, 411. 
aculeata, 287, 323, 400. 
cochlearis, 278, 282, 285, 323. 
hypelasmay 324. 
Apium inundatum, 159, 172, 194, 
237, 328. 
nodifiorum, 172. 
365. 
Arcella, 278. 
artocrea, 326. 
disco ides, 326. 
hcmispherica, 326. 
vulgaris, 326. 
Archigetes sieboldii, 318. 
Arctostaphylos alpina, 192, 204. 
uva-ursi, 192, 206. 
Argulus, 368. 
Armeria maritima, 211. 
Arrhenurus, 313. 
Artemia, 542. 
Arthrodesmus crassus, 279. 
mews, 279, 281. 
quiriferus, 279. 
triangularis, 279. 
Arthroglena lutkeni, 300, 322. 
Ascomorpha ecaudis, 321. 
^seZZws, 298, 306, 355, 367. 
aquaticus, 315. 
/oreZi, 306. 
Aspidisca turrita, 325. 
Asplanchna, 282, 288, 405, 411. 
brightwelli, 400. 
priodonta, 277, 285, 321, 407. 
Assuleria minor, 326. 
seminulum, 326. 
Astacus, 355, 358. 
Asterionella, 282, 285, 290. 
formosa, 255, 280, 282, 303, 333. 
gracillima, 280, 282, 303, 333. 
^^a-aj crassipcs, 313. 
Aulaco77inium palustre, 187. 
Automolos morgimsis, 292, 307, 319. 
^soZZft, 357. 
^aefo's, 334. 
Balanus, 360, 361. 
Batrachium, 357, 396. 
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