mouse, rock, Peyoniyscus nasutus, 311 



mouse, rock pocket. Per ogiia thus interniedius . 335 



mouse, southern grasshopper, Onychomys torridus.33b 



mouse, western jumping, Zapus princeps 



mouse, white-footed, Peyoiiivscus leucopus. 16, 87, 



Table 2-1, 113, 114, 115-116, 136, 149, 210, 215, 



246-247, 248, 251, 257, 295, 296, 299 

 mouse, woodland jumping, Napaeozapus insignis, 303 

 mudminnow, Umbra limi (fish), 64, 85, 92 

 mulberry, red. Moms rubra (tree), 113-114 

 murre, Uria (bird), 319 



muskox, Ovibos (mammal), 175, 187, 285, 286, 318 

 muskrat. Ondatra zibethicusA^-^^, 86, 87, 90, 91, 92, 



Fig. 17-6, 145-146, 207, 208, 219, 229, 232-233, 



237, 241-242, 306, 368 

 muskrat, round-tailed, Neofiber alleni , 298 

 Musophagidae, plaintain-eaters (birds), 271 

 mussel, marine, Pelecypoda, 352, 363, 368 

 Mya areiiaria, soft-shelled clam. Table 28-1 

 Myriapoda (see millipedes, pauropods, centipedes) 

 Mysidacea (crustaceans), 68, 357, 358-359, 360 

 Mysis relicta, mysid crustacean, 73-74 

 Mytilus edulis, moUusk, Table 28-1 

 Myxophyceae, Thallophyta (blue-green algae), 92, 362 



N 



naiad, Najas (plant), 79-81 



Naucoridae, creeping water-bugs, 83-84 



nekton, 66, 76, 359, 359-362 



Nematoda (round worm), 39, 71, 87-88, 104-105, 124, 



125, 130, 130-131, 178-179,179, 180, 365 

 Nemertinea (ribbon worms), 357, 360 

 Nepidae (water scorpions, insects), 83-84, 85 

 nettle, wood, Laportea canadensis (plant), 112 

 Neuroptera (lacewings, insects), 319 

 neuston, 66, 81 

 newt, common, Diemictylus viridescens (salamander), 



296-297 

 nighthawk, common, Chordeilis wznor (bird), 297-298, 298 

 nighthawk, lesser, Cliordeiiis acutipenms,33b-336 

 Notonectidae (backswimmers, insects), 83-84, 84-85, 

 nudibranch. Gastropoda (sea slugs), 363 

 Nuphar. yellow pond-lily (plant), 92 

 nutcracker, Clark's, Nucifraga columbiana (bird). Fig. 



23-3, 307 

 nutcracker, Siberian, Nucifraga caryocatactes, 195 

 nuthatch, brown-headed, Sitta pusilla (bird), 115, 298, 



Table 8-6 

 nuthatch, pigmy, Sitta pygmaea. 307 

 nuthatch, red-breasted, Sitta canadensis. Fig. 23-3, 109- 



110, 302-303, 303-305, 305, Table 23-1 

 nuthatch, white-breasted, Sitta carolinensis . 253, 296, 



Table 7-4 

 Nymptiaea, water lily (pilant), 79-81, 92 



oak, Quercus (tree), 23-24, 112, 113, 113-114, 115, 116- 

 117, 24, Table 7-6, Table 20-1, 175, 179. 282, 290-2 

 291, 294, 298-299, 311 



oak, black, Quercus velutina. 105, 121, 190 



oak, bur, Quercus macrocarpa, 121 



oak, northern red, Quercus rubra. 105, 121, 190 



oak, pin, Quercus palustris . 79-81 



oak, swamp white, Quercus bicolor. 79-81 



oak, white, Quercus alba. 105, 121, 190 



Octodontidae (spiny rats, etc.), 347 



Odonata (see dragonfly, damselfly) 



oldsquaw, Clangula liyemalis (duck), 318 



Oligochaeta (see Annelida) 



Onychophora (worm-like arthropods), 349 



opossum, Didelphis virginiana (mammal), 109, 114-115, 

 151, 295 



orangutan, Pongidae (primate mammal), 271-272 



oriole, Bullock's, /c/e77<s bullockii (bird), 297-298 



oriole, orchard. Icterus spurius. 298 



oriole, Scott's, Icterus parisorum. 311-312 



Orthoptera (grasshoppers, crickets, cockroaches). Table 



9-6, 299, 319 

 osprey, Pandion lialiaetus (bird), 179 

 Ostracoda (entomostracans), 66-67, 71, 81, 88, Table 



7-5, 319, 349, 357, 358-359, 360, 363, 365 

 ostrich, Strutliio camelus (bird). Table 25-1, 271 

 otter, Lutra canadensis (mammal), 43-44, 86-87 

 ovenbird, Seiurus aurocapillus. 248, 248-249, 296, 305, 



Table 7-4, Table 23-1 

 owl, Strigiformes, 188-189, 299 

 owl, barred, Strix varia, 296 

 owl, boreal, Aegolius funereus, 306 

 owl, burrowing, Speotyto cunicularia . 326, 337 

 owl, elf, Micrathene whitneyi, 335-336 

 owl, flammulated, Otus flamrneolus. 307 

 owl, great gray, Strix nebulosa, 306 

 owl, great horned. Bubo virginianus. Fig. 22-3, 149, 



Table 16-4, 225, 237, 296, 302-303, 335-336 

 owl, pygmy, Glaucidium gnoma . 307 

 owl, saw-whet, Aegolius acadicus. 302-303 

 owl, screech, Otus asio, 297-298 

 owl, short-eared, Asio flammeus. 125, 240, 326 

 owl, snowy, Nvctea scandiaca. 150, 228, 237, 239, 240, 



318, 319-320, 320, 321 

 oyster, Pelecypoda (moUusk), 229, 364, 371 

 oyster, American, Crassostrea virginica, 368, 371 

 oyster, rock, Pododesmus macroschisma, 363 



paca, Agouti, rodent. Table 27-2 



paddlefish, Polydontidae, 282 



paddlefish, Polyodon spathula. 74-75 



paloverde, Cercidium (tree), 26-9, 26-12, Fig. 26-3, 



333 

 pangolin. Mania (mammal), 271-272 

 panther (see mountain lion) 

 parakeet, Carolina, Conuropsis carolinensis (bird), 298, 



300 

 Paramecium. Protozoa (ciliate), Fig. 18-2, 159-160, 173, 



222, 240, 254, 258 

 parrots and parakeets, Psittacidae, 175, 270 

 partridge, gray, Perdix perdix (bird). Fig. 17-3 

 partridge-berry, Mitchella repens (plant), 282 



460 Index 



