INDEX. 



755 



Page. 

 Pectunculus arcodentiens, new species. 705, 733 



Pelecypoda _ 143, 687 



Pellicula 445 



Peltella - 430 



Peltellas 439 



Penfield, Benjamin B 573,579 



Pentagonaster eximius, new species . -- 364 



granularis 365 



Pentagonasteridse 357, 266, 268 



Pentelicus, new genus 605, 606, 611 



aldrichi, new species 613 



Perca. 124,125 



salmonea 136 



variabilis 388,389,405 



Percarnia - 134,135 



Percidae 124 



Pergande, Theodor 609 



Peridotite var . wehrlite 651 



Periploina alta. - 157 



argentaria 157 



escurva - 157 



lenticularis 157 



planiuscula 157 



Perisoglossa 306 



Perissodon - 90,93 



clathrodonta 99 



minor 99,105 



subgenus - 99 



Perna chemnitziana 145 



janus 145 



Peru, shells from.. 148 



Petaloconchus macrophragma 193, 303 



Petromyzon 108,110 



branchialis 107,108 



fluviatilis 108 



macrostomus 110 



marinus- 108 



planeri.... 107,108 



sp 109 



Petromyzontidae .- 109 



Petrosaurus - 589 



Petunculus gealei — 706 



giganteus 147 



maculata 147 



tenuisculptus 147 



Pfeffer, G 550 



Philadelphia Academy , shells in 154 



Pholadomya 700 



Phoxaster - 256 



pumilus 256 



Phragmites alaskana. 216,333 



Phyllites arctica, new species 330,234,240 



Phyllonotiis ambiguus 185 



bicolor 183 



brassica. 184,185 



erythrostoma --- 184 



nigritis - -- 184 



princeps 184 



radix. - 184 



Physa 431 



Physokermes 616 



Phsenicophilus 305 



Phajnodiscus 605,606,611.613 



aeneus .-. 605,613 



Phseornis, affinities of 310 



obscura - - . 302, 311 



Phainopepla nitens, affinities of 313 



Page. 



Phalsenoptilus 552, .553, 5.56, 557, 558, 567, 571 



nuttalli _ 555 



Phenacoccus 615 



Pheuacomys 343 



Phasianella perforata 198, 303 



Phasianellidae 198 



Picea sitchensis 310,315,233 



Pike, N. , stomatopoda collected by 495, 5(X> 



Pike-perches, proper name of 126 



Pillsbury, Samuel, shells collected by . . 141 



Pilumnus diomedete, new species. 85 



gracilipes 86 



Pineria - 430,431,433,446 



viequensis- 443 



Pinites pannonicus 315,333 



Pinnaspis - - 616 



Pinus echinata.. 430 



rigida 418 



sp - 313.333 



staratschini 213, 2:33 



virginiana 418 



Pipilo er y throphthalamus 304 



Pisaincisus 71 



qiiadridens 71 



Pisania gemmata 179 



insignis 179 



Pisidium 431 



abditum .-_ 438 



consanguineum 438 



Pituophis melanoleucus 338, 336 



Pityoxylon intequale 315, 333 



Placunanomia - 146 



cumingii 144 



Plagioptycha - 430,434 



Plagiostomes Ill 



Planch onia bryoides 631 



Planera aquatica 415 



ungera 224, 3:34 



Planorbis 4:30 



albicans 444 



bicarinatus 166 



car ibseus 438 



circumlineatus 444 



corijulentus 166 



guadaloupensis 443, 444 



haldemani 444 



havanensis 438 



lucidus 443,444 



macnabianus 444 



ref ulgens 444 



rissii -.. 444 



schrammi 443 



tumidus 438,440,444 



Plants, fossil, from Dakota formation. . 136 



Plastic clays of New Jersey 106 



Platanites hebridica -- 339 



Platanus nobilis 334,339 



occidentaUs _ 416, 417, 418, 430 



primseva - 133 



Platypeltis ferox 317 



Platystoma 431 



Plecotus auritus 16 



Plecti'ophanes - 305 



Plectr ophenax nivalis 304 



Plethodon glutinosis ..'. - 598 



Pleurodonte 430,431,433,433,435,444,446 



bowdeniana, new species. . 450 



