INDEX. 



715 



Page. 



Nomada, species, list of 226 



sulpharata 236, 237 



superba 240 



taraxacella 23S 



texana 238,242 



ultima 238 



vexator 243 



(Xanthidinm) arizonica 242 



xantholepis 239, 240 



North America, bees of the genus Nomada 



found in 225 



the characters of the fossil 

 plant G igantopteris Schenk 



and its occurrence In 493 



Notidanoid shark from the Philippine Is- 

 lands, description of a new 489 



Nototrema oviferum 288 



Nucleocrinus 206 



Obera tripunetata 295 



Oberholser, HaiTy C, A revision of the forms 

 of tlie ladder-backed woodpecker Dryobates 



scalaris [Wagler] 139 



Odontopteris 495 



brardii 508 



fischeri •. 505.512 



minor 508 



neuropteroides 505 



permiensis 512 



of. permiensis 507 



reichiana 504 



subcrenulata 510, 511 



Odynerus (Stenodynerus) canamexicus 448 



Oesophagostomum eolumbianum 3G5 



Oligometra adeonae 172 



Oniscus scorpioides 034, 641 



Onoba aleutica 289, 485, 487 



cerinella 289, 290 



saxatilis 289 



Onychiopsis 308, 321 , 324 



brevifolia 328, 329 



elongata 325, 331 



goepperti 325,329,331 



latiloba 329,332 



mantelli 322, 330 



nervosa 327, 329 



psilotoides 327, 329, 330, 331 



Onychium 325, .331 



Onychocrinus 181 



Ooencyrtus papilionis 277 



Ophryoxus gracilis 163 



OpistMstius tahmel 596 



Orbitremites 181,205 



Orgyia antiqua 270 



Orocystis helmhackeri 10 



Orophocrinus 204 



stelliformis 204 



Orthopristis 550 



OxyurostyUs 606 



smithi 607, 008, 667 



Pachynematus alaskensis 387 



ocreatus . 387 



picere 387 



Pachy tylus australis 269 



Pagrosomus auratus 575. 579, 580 



major _ 571, 



573, 574, 575, 576, 577, 578, 579, 580 



Page. 



Pagrus arthurius 577,579 



cardinalis 573 



guttulatus 579 



latus 579 



microptcrus 579 



pagrus 581 



ruber 577 



tumif rons 571 



unicolor 576. 578, 579 



Paleacis 218 



Panama, three new batrachians from, descrip- 

 tions of 285 



Paradentex (microdon) 568 



Paradules marginatus 525 



tfeniurus 522 



Paralamprops oribicularis 607, 621 



serrata costate 632, 634 



trilineatum 544 



Parasierola cellularis 447 



distinguenda 448 



var. gracilicomis 448 



Parasiobla rufocinctus 406 



Parophryoxus tubulatus 161, 162 



Pecopteris 308, 495 



Peeopteris, sp 502, 503 



andersoniana 315 



angustipennis 313 



arborescens 505, 510 



arctica 315 



brevipennis 319 



browniana 312 



bucklandi? 508 



(Callipteridium?), sp 502 



(Cladophlebis?), sp 502 



constricta 313 



cyathea 504,507 



densifolia? 505 



dunkeri 318, 319 



exilifomiis 318 



exilis 318 



foeminaefonnis 510 



geinitzi 507, 511 



cf. geinitzii 508 



geyleriana 318 



goepperti 504 



grandifolia 505 



hemitelioides 505, 508 



hyperborea 315 



microdonta 313 



ovatodentata 313 



pachyphylla 319 



pinnatifida 508, 510, 511 



polymorpha 318, 319, 508 



socialis 313 



strictner\-is 313 



tenuinerv'is 505 



ungeri 318, 319 



unita 508 



virginiensis 313 



whitbiensis 310 



Pelates 539 



Pelmatozoa, the structure and relationship.s 



of certain Eleutherozoic 1 



Pentacrinus 53, 84 



briareus 39, 40, 42 



cirri 40 



