666 



INDEX. 



Maryland, Gomphus parvidens, a new species 



of dragonfly from 223 



Mastodon, description of a new species, 

 Gompliotherium elegans, from the Pleisto- 

 cene of Kansas 219 



Mayetiola destnictor Say, a new American 



parasite of the Hessian fly 255 



Melanella (Balcis) adamantina 331 



arnoldi 322 



berryi 326 



catalinensis 329 



Columbiana 324 



comoxensis 325 



cosmia 322 



draconis 319 



falcata 329 



gibba 332 



grippi 327 



halia 322 



iota 332 



lastra 321 



macra 326 



montereyensis 320 



peninsularis 320 



prefalcata 327 



taravali 328 



thersites 323 



townsendi 323 



yod 330 



bistorta 323 



Columbiana 326 



compacta 315 



lowei 323 



(Melanella) abreojosensis 315 



baldra 314 



califomica 313 



compacta 314 



dalli 302 



elodia 318 



gabbiana 316 



hastata 317 



hemphilli 313 



linearis 310 



mexicana 315 



micans 303 



borealls 305 



monicensis 309 



necropolitana 309 



ochsneri 305 



oldroydl 309 



panamensls 311 



producta 318 



pusilla 317 



randolphi 312 



recta 311 



retexta 317 



rutila 306 



solitaria 308 



tacomaensis 316 



micans 305 



peninsularis 321 



Melanellidae, a monograph of West American 



moUusks of the family 295 



Meleborus laspeyresiae 161 



Mellita sexlesperforata 493 



Mesoleptus incompletus 540 



Metrobates aeternalis 391 



Microbracon sanninoideae 196 



Microgadus tomcod 59 



Mlerogaster epagoges 197 



Microlyda dujardini 251 



Mollusks, Melanellid, a monograph of West 



American 295 



Mucronalia (?) bathymetrae 353 



Mugil cephalus 68 



Mussels, fresh-water, new, of the genus Dip- 



lodon 381 



Myers, P. R. An American species of the 

 hymenopterous genus Wes- 



maelia of Foerster 293 



A new American parasite of 

 the Hessian fly (Mayetiola 



destructor Say) 255 



Neoclytus caprae 165 



Neocremastus stigmaterus 509 



Neopius carinaticeps 203,204 



Nepiera benevola, var. fuscifemora 208 



Nirmus francisci 231 



Niso (?) antiselli 351 



eburnea 348 



excolpa 348 



hipolitensis 350 



imbricata 298,299,351 



interrup ta 298, 299, 349 



lomana 350 



splendidula 298, 299, 348 



Norops ophiolepis 273 



North Carolina, a new species of bear-animal- 

 cule from the coast of 251 



Notanisomorpha meromyzae 216 



Nysson (Brachystegus) pacificus 249 



(Hyponysson) raui 176 



rusticus 248 



Obelia geniculata 19 



Odontaspis littoralis 19 



Odontobracon californicus 169 



elaphidiovorus 168 



oemeovorus 167 



Odontomerus strangaliae 158 



Odostomia (Scalenostoma) babylonia 300,335 



rangii 300,337 



Odynerus blandinus 236 



eldoradensis 238 



gillardi 237 



robustus 238 



truncatus 236 



Onychiirrinae, North American Collembolous 



insects of the subfamily 637 



Onychiurus arcticus 645 



armatus 637,643,644,645 



var. arctica 644 



cocklei 637,640 



colUs 637 



dentatus 637, 647 



flmetarius 637,649 



inermis 649 



htoreus 637, 644 



octopunctatus 637, 647 



pseudarmatus 637 



pseudoflmetarius 637, 650 



ramosus 637, 648 



Simills 637,640 



subtenuls 637,642,643 



