622 
Dace, Horned—continued. 
Semotilus atromaculatus. 
Long-nosed, 386, 397, 405, 408, 412. 
See also Rhinichthys cataracte. 
Red-bellied, 385, 395, 403, 417, 422, 
428. See also Chrosomus erythro- 
gaster. 
Dactylococcus infusionum, 34. 
Dangeardia mammillata, 80, 84. 
Daphnia, 47, 295. 
angulata, 232. 
cucullata, 159, 224, 225, 232, 240-242, 
246, 337. 
var. apicata, 225, 241, 242. 
var. cederstr6mii, 243. 
var. kahlbergiensis, 225, 241, 243. 
galeata, 243, 245, 2406. 
hyalina; 224, 225, 232, 245-247, 33:7. 
jardinei, 240. 
kahlbergiensis, 244. 
microcephala, 246. 
retrocurva, 244. 
Darter, Banded, 390, 400, 404, 417, 422, 
431. See also Etheostoma zonale. 
Black-sided, 389, 400, 402, 417, 431. 
See also Hadropterus aspro. 
Blue-breasted, 390, 400, 404. 
Fan-tailed, 390, 401, 403, 417, 431. 
See also Etheostoma flabellare. 
Green-sided, 389, 400, 404, 414, 421, 
431. See also Diplesion blennio1- 
des. 
Johnny, 389, 400, 403, 431. 
Boleosoma nigrum. 
Least, 390, 401, 403, 432. See also 
Microperca punctulata. 
See also 
Rambow. 390; 401, 4038. 417-431. 
See also Etheostoma cceruleum. | 
Sand, 390, 400, 404, 417, 431. See 
also Ammocrypta pellucida. 
Darters, 425. 
Deer, 508, 512, 570, 601, 602, 603, 604. 
Virginian White-tailed, 516. 
Dero furcata, 137. 
linmosaen loi. 
ODeuUsa lov. 
vaga, 137. 
INDEX 
Desmids, 11, 13, 17, 34, 59-62, 94. 
Diaphanosoma, 223, 227. 
brachyurum, 224, 225, 247-252, 292, 
BOVE 
Diaptomus, 47, 260, 261, 281, 283. 
pallidus, 261, 277, 280-282, 339. 
siciloides, 261, 277, 281, 282, 339. 
spp., 282. 
Diaschiza lacinulata, 203. 
Diatoma elongatum, 292. 
var. tenue, 43, 49, 317. 
vulgare, 50. 
Diatoms, 6, 9, 11, 17, 22, 34-59, 70, 82, 
OA MOSe 11ON TS ONS O28 
Dickcissel, 452. 
Didelphys virginiana, 513. 
subsp. pigra, 514. 
Didinium nasutum, 124. 
Dittitieta: 7,95, 10S; Ooms OReae sp 
acuminata, 04 05 no256 
var. inflata, 104. 
var. umbilicata, 104. 
bacillifera, 111. 
bicuspidata, 105. 
capreolata, 111. 
constricta, 105. 
corona, 105. 
curvicaulis, 104. 
cyclotellina, 109. 
elegans, 104, 105. 
var. teres, 104. 
pealllll arene 
fragosa, 105, 106. 
globulosa, 11, 106-110, 111, 292, 326. 
gramen, 111. 
Viate achloras wlll: 
hydrostatica, 109. 
lanceolata, 104. 
lithoplites, 111. 
lobostoma, 11, 106, 109, 110, 326. 
var. limnetica, 109. 
planktonica, 109. 
pristis, 111. 
jowileoe, iil 
pyriformis, 111, 326. 
var. claviformis, 111. 
var. lacustris, 111. 
