INDEX 



569 



Mnium (Continued). 



nudum 324, 346 



punctatum 324 



punctatum anceps 324 



punctatum datum 324 



rugicum 323 



spinulosum 324 



subglobosum 325 

 Modulidas 553 

 Modulus cerodes 553 

 Mollusca, marine, by H. A. Pilsbry and E. 



G. Vanatta, 549 

 Monoblastus 213 



niger 213 

 Monoceros grande 554 

 Monophadnus 255 



insularis 255 

 Mosses of Alaska, by J. Cardot and I. 



Th^riot, 293 

 Murex dipsacus 554 



princeps 554 

 Muricidse 554 

 Myrmica 135 



laevinodis 135 



sabuleti lobifrons 135 



sulcinoides 135 

 Myrmicidse 135 

 Mytilidse 551 

 Mytilus multiformis 551 

 Myurella julacea 331 



julacea scabrifolia 331 



Nassa angulifera 554 

 Nassidae 554 

 Naticidae 552 

 Neanura gigantea 88 



ornata 89 

 Neckera douglassi 331 



menziesii 331 



pennata 331 

 Neckeracese 331 

 Nematidse 256 

 Nematinae 256 

 Nematus 257 



crassus 257 



longicorms 257 



ocreatus 256 



pleuricus 256 

 Nesotriccus 517 



ridgwayi 518 

 Neurotelee 228 



americana 232 



dublosus 228 



liriodendri 232 

 Nidorellia armata 523 

 Nirmus 467 



curvilineatus 470 



galapagenBis 471 



gloriosus 458, 467 



lepidus 473 



obtusus 468 



paludlcola 469 



separatus 472 



vulgatus 458, 474 



vulgatus galapagensis 474 



interpositus 475 



Ocypode gaudichaudii 275 

 Ocypodidse 275 

 Odo insularis 64, 79 

 galapagoensis 64 



Proc. Wash. Acad. Sci., Oct., 1902. 



Odontomerus 202 



mellipes 202 

 Odynerus 134 



albophaleratus 134 

 Officers 22 

 Olesicampa 235 



alaskensis 235 

 Oligotrichum aligerum 327 



hercynicuni latifoliutn 327 



integrifolium 327, 346 

 Olios galapagoensis 63, 78 

 Olividae 555 

 Olivella gracilis 555 

 Omalus 135 



sinuosus 135 

 Onchidiidae 556 

 Onchidium lesliei 556 

 Onychoteuthidas 556 

 Ophiocoma aethiops 525 

 Ophion 233 



bilineatum 233 



bilineatus 233 



lateralis 233 



purgatus 233 

 Ophionereis albomaculata 524 



annulata 525 



nuda 525 

 Ophioninae 233 

 Ophionini 233 

 Ophiothrix magnifica 526 



spiculata 525 

 Ophiura teres 524 

 Ophiuroidea 524 

 Opiinae 251 



Opisthobranchiata 555 

 Oreoweisia serrulata 295 

 Orthocentrus 231 



californicus 230 



nigritus 231 

 Orthocentrini 226 

 Orthothecium chryseum 332 



intricatum 332, 346 

 Orthotrichaceae 309 

 Orthotrichum arcticum 310, 346 



fenestratum 310 



pulchellum 311 



speciosum 311 

 Ostrea mexicana 550 



rosacea 550 

 Ostreidae 550 



Pachygrapsus crassipes 278 



transversus 279 

 Pachynematus 256 



affinis 256 



gotarus 257 



ocreatus 256 



orarius 257 



oronus 256 



pleuricus 256 

 Pachyprotasis 260 



nigrofasciata 260 



omega 260 

 Palaemon 291 

 Palaemonidae 291 

 Palinuridae 287 

 Paludella squarrosa 315 

 Pamphilius marginivenlris 254 



nigropeclus 254 

 Paniscini 237 



