3 66 



ANIMAL COMMUNITIES 



Spherid, anaerobic, 133. 

 Spiders, 167. 

 Spiders, scientific names: 

 — Acrosomal 



gracilis, 238, 240, 260. 



spinea, 238, 240, 260. 

 — Agelena naevia, 207, 218, 254, 296. 

 — Anyphaena conspersa, 260. 

 — Argiope: 



aurantia, 263, 264, 276, 296. 



trifasciata, 204, 205, 208, 232, 259, 



263, 293, 296, 298. 

 — Attus palustris, 276. 

 — Atypus milberti, 277. 

 — Castianeira cingulata, 197, 207. 

 — Chiracanthium inclusa, 187, 205. 

 — Clubiona obesa, 277. 

 — Dendryphantes: 



militaris, 205, 206. 



octavus, 204, 205, 206, 228, 258. 

 — Dictyna: 



foliacea, 206, 208, 228, 232, 257, 276. 



sublata, 187, 204, 207. 

 — Dictynidae, 257. 

 — Dolomedes: 



sexpunctatus, 146, 169, 187, 283, 296. 



tenebrosus, 243. 

 — Epeira, 198, 232: 



domicilorum, 240, 257, 306. 



foliata, 187, 204, 206. 



gigas, 194, 205, 206, 208, 240, 257, 272. 



ocellata, 206. 



prompta, 204. 



trifolium, 205, 276, 277, 296. 



trivittata, 188, 205, 214, 276, 284, 293, 



296. 

 — Epeiridae, 208, 257, 260. 

 — Eucta caudata, 187. 

 — Eugnatha straminea, 204, 296. 

 — Gayenna celer, 260. 

 — Geolycosa pikei, 220, 227, 230, 250, 252. 

 — Habrocestum pidex, 206. 

 — Hypselistes florens, 207. 

 — Leucauge hortorum, 202, 208. 

 — Linyphia phrygiana, 260. 

 — -Lycosidae. 261. 

 — Maevia niger, 260, 277, 298. 

 — Mangora maculata, 206, 260. 

 — Misumena vatia, 214, 264, 285, 296. 

 — Misumessus: 



asperatus, 231, 232, 257, 293. 



oblongns, 207. 

 — Notionella inter pres, 261. 

 — Ozyptila conspurcata, 296. 

 — Pardosa, 215: 



lapidicina, 213, 214, 215. 254. 

 — Phidippus: 



audax, 207, 264. 



borealis, 297. 



podagrosus, 204, 293, 298. 



rufus, 298. 

 — Philodromus: 



alaskensis, 223, 228, 257. 



ornatus, 205. 



pemix, 259. 

 — Pirata: 



insularis, 187. 



montana, 204. 



piratica, 206. 

 — Pisauridae, 204 

 — Pisaurina, 198: 



undata, 204, 206, 208, 277. 

 — Plectana stellata, 204. 

 — Runcinia aleatoria, 204, 214, 277, 293, 



296. 

 — 5i;?ga variabilis, 276. 

 — Tetragnatha: 



grallator, 205, 206. 



laboriosa, 169, 187, 208, 263, 276, 



284, 285, 296. 

 — Theridiidae, 257. 

 — Theridium: 



frondenm, 191, 202, 206, 208, 240, 



257, 258. 



spirale, 228, 258. 

 ■ — Thiodina puerpera, 204. 

 — Thomisidae, 257. 

 — Tibellus didtoni, 187, 204. 

 — Trochosa cinerea, 222, 252. 

 — PFa/a mitrata, 261. 

 — Xysticus formosus, 228, 258. 

 — Zygoballus bettini, 206. 

 Spittle insects, habits of, 202. 

 Sponge, abundant in stream, 97. 

 Sponges, scientific names: 

 — Heteromeyenia ar gyros perma, 153. 

 — Meyenia: 



crateriformis, 153. 



fluviatilis, 153. 

 — Spongilla, 116, 131: 



fragilis, 153. 

 Spontaneous movement, 26. 

 Springtails, 180. 



Squirrels: 233; fox, 245; Franklin 

 ground, 269, 274; gray, 192, 202, 245; 

 ground, 167, 227, 286; red, 245. 

 Stations of study, 50, 51-56. 

 Statoblast, 129. 

 Stickleback, 85. 

 Stimulus, defined, 26. 

 Stinkbugs, hibernating, 202. 

 Stonecat: 119; slender, 95. 

 Stone-fly nymphs, scientific name: 

 — Perla, 78, 116, 121. 

 Stone-roller, 119, 120. 



