Index. 



457 



Pal3eocassia laurinea, 312 

 pallens, Gryllus, 83 



Schistocerca, 83 

 pallida, Inusia, 56 



Leptysmina, 44, 45 

 Parachloebata pratensis, 2-] 

 Paradichroplus fusiformis, 86, 87 



geniculatus, 86 



sanguineus, sp. nov., 86, 87 

 paradoxum, Pisidium, 427, 431 

 paradoxus, Corycus, 130 

 paraguayensis, Bucephalacris, "jz 

 Paramastax brevipennis, 19 



facialis, 19 



gaudens, 18 



laeta, 19 



magna, 18 



nigra, 19, 20 



personata, 19 



pictifrons, sp. nov., 19 



Synopsis of the Species of, 18 



taeniata, 19 

 Parapetasia femorata, 102 



impotens, 102 

 Paraptera. 177, 178 



fragilis, 151 

 Paraguay ensc. Cornops, 61 

 Parascopas, 84 



obesus, 85 



sanguineus, 85 

 paratecta, Tettigidea, 13 

 Paratettix, borellii, 11, 12 



meridionalis, 95 



peruvianus, 1 1 



wilverthi, 96 

 Paratruxalis, 24 



filatus, 25 



minor, 25 

 Parlatorii, Andromeda, 323 

 Parorphula, 32 

 parva, Liza, 240, 250, 253 

 parvifolia, Cissites ingens, var., 311 

 parvus, Puffinus, 356, 359, 360, 361, 



362, 363, 364, 376 

 parvula, Fusconaia flava, 151 

 patella, Sphaerium, 426 

 patruus, Crimisus, 9 

 pauperculum, Pisidium, 425, 427, 433 



Pleurobema obliquum, 151 

 Paurotarsus, 16 



amazonus, 17 



insolitus, 17 



rugosus, 17 

 pelagicum, Cornops, sp. nov., 61 

 Pelecanoides urinatrix, 353, 363, 365 



pelidna, Orphulella, 2(>, 100 

 Pentasimcra braziliensis, 265 

 Perissodactyla, 230 

 personata, Paramastax, 19 

 peruna, Orphulella, 26 

 Peruvia nigromarginata, 29 

 peruviana. Ommatolampis, 79 



Rhytidichrota, 89 



Rhytidichrota, 90 

 peruvianus, Allotettix, 10 



Paratettix, 1 1 

 pescadorensis, Liza, 240, 250 

 Pescadores Islands, 259 

 Pfaffiana, Andromeda, 324 

 Phseoparia, ■]■>, 



boliviana, sp. nov., 74 



castanea, 74 



linea-alba, 74 

 Phaneroptera, nana, 132 



reticulata, 133 



sp. ?, 133 

 Phaneropteridae, 130 

 pharaonis, Phloeoba, 99. 



Rodunia, 99 

 phila, Tetrataenia, 62, (>■>, 

 Phlaurocentrum latevittatum, 132 

 Phloeoba pharaonis, 99 

 Phylloptera, 134 



Physical Conditions of the Drainage 

 Basin of the Upper Ohio, 155—156 

 pictifrons, Paramastax, sp. nov., 19 

 pictipes, Pteropera, 112 

 pictorum, Unio, 147, 148 

 picturata, Cyphocerastis, n. sp., 108, 



109 

 pilosa, Rhytidichrota, 89 

 pilula, Pisidium, 428, 437 

 Pinaceae, 2S6 



Pisidium and Sphaerium, Descriptions 

 of new species and forms of, 429— 

 439 

 Pisidium, 433, 435 



abditum, 427 



abortivum, 428 



abortivum exiguum, 428 



aequilaterale, 427 



amnicum (form striolatum Bau- 

 don?), 426 



apiculatum, 425, 433 



columbianum, 426, 427, 438 



compressum, 425 



compressum, mutatum, 427, 429 



contortum, 425 



curvatum, 427 



decisum, 427, 430 



