688 



PROCEEDINGS OF THE ACADEMY OF 



[Dec, 



Pseudancistrus nigrescens 274 



Pseudisotina 64 



Pseudomasaris 328 



vespoides 332 



Pseudopomala brachyptera 486 



Psinidia fenestralis 374, 504 



Psithyrus sp 333 



Psocidse 611 



Psocus semistriatus 611 



stigmosalis 611 



Psylla astigmata 636 



caudata 637 



Psyllites 636 



crawfordi 637 



Pterophylla perspicillatus 52 1 



Punctum conspectum 370 



pygmseum 225 



Pupilla muscorum 223 



Pupillid£E 431 



Pupoides marginatus 431 



Pycnophlebia speciosa 636 



Pycnoscelus surinamensis..376, 380, 381 

 Pygocentrus piraya 251 



scapularis 251 



Pygoprist is denticulatus 251 



Pyramidula (Planogyra) asteris- 



cus 224 



cronkhitei 370 



c. anthonyi 224 



occidentalis 370 



Pyrgocorypha uncinata... 374 



Pyrite 5 



Pyroxene 4, 6, 7 



Pyrrhocoris apterus 552 



Pyprfiulina filamentosa 233 



Quartz 5, 7, 8 



Rachycentron canadus 343 



Radinotatum brevipenne peninsu- 



lare 376,389 



Raja eglanteria 353 



erinacea 353 



laevis 353 



ocellata 353 



Reithrodontomys soderstromi 11 



Rhabdomastix (Sacandaga) cau- 

 data 586 



Rhamdella eriarcha 263 



foina... 262 



ignobilis 263 



leptosoma 260 



Rhamdia holomelas 260 



h. rupununi 258 



sebaj 258 



Rhaphidolabis flaveola 591 



noveboracensis 600, 601 



polymeroides 601 



Rhinichthys atronasus 350, 357 



Rhipidia arinulicornis 582 



(Rhipidia) bryanti 580 



Rhipidia multiguttata 582 



schwarzi 581, 582 



(Arhipidia) shannoni 581 



subpectinata 582 



Rhoenanthus posticus 613 



Rhypholophus rubellus 591 



Roccus chrysops 353 



lineatus 353 



Romalea microptera 394 



Salatura... 198 



Salmo fario 348 



fasciatus 236 



Salvelinus fontinalis 348 



Sarcocystis leporum 214-217 



muris 433 



rileyi 218 



setophagse 217 



Sarcosporidia 214-218 



Satyrinse 170 



Scapteriscus abbreviatus 374, 376 



Sceliphron cementarius 315 



Schilbeodes gyi'inus 346, 351 



insignis 357 



Schistocerca alutacea 395, 506 



americana 395, 396, 506 



damnifica 506 



d. calidior 376, 396 



obscura 395, 508 



rubiginosa 508 



Schizodon fasciatus 242 



Scisenops ocellatus 342, 343 



Scirtetica marmorata 505 



m. picta 374 



Sciurus hoffmanni 9 



h. soderstromi 14 



irroratus 14 



Scoliodon terrse-novffi 342 



Scomber colias 346 



Scudderia cuneata 374 



curvicauda 518 



f areata 518 



pistillata 519 



septentrionalis 519 



texensis 374,517 



truncata 519 



Segmentina obstructa geoscopus 431 



Semotilus atromaculatus 348, 356 



bullaris 348 



Seriola zonata 343 



Serrasalmus gymnogenys 251 



rhombeus 251 



Setophaga ruticilla 217 



Silpha 335 



thoracica 336 



Solenius intorruptus 332 



Solvsbergite 6, 7 



Sorubim lima 263 



Spharagcmoii bolli 394, 502 



collare wyomingianum 502 



crepitans 394 



