292 



INDEX. 



Page. 

 MACRODOX Continued. 



truncatus 243 



HARTINIA, subgenua 139 



MEGAMBONIA 173 



occidualis 173 



subcordiformis 173 



ilEXOCEPHALUS Sedgwicki -- 51, C4 



MERISTELLA 148 



Elissa 148 



nasuta 148,149 



tniuida I 49 



(Wliitfieldia) nasuta 148 



METOPTOMA 83,195,260 



? analoga 84 



? Devonica 195 



Phillips! 83,84 



peroccidens 26O 



perovalis 



Treutonensis --- 84 



MICKOUON 180,250 



complanatus 1 go 



(Cy pi icardella) bellistriatus 250 



(Cypricardella) connatus 25O 



(Cypricardclla) gregarius 250 



(Cypi icardilla ) macrostriatus ISO, 250 



MODIOLA . 239 



?Nevadensis 239 



MODIOLOPSIS 77 



mytiloides 77 



occidens - 77 



Pogonipensis 78 



sp.? 270 



MODIOMORPHA 109,239 



alta 170 



altifonne 1 



ambigua 239 



desiderata *4O 



Hyalea 240 



lingniforinis 170 



oblonga 1TO 



obtusa 1*1 



/Pintoousis *4O 



quadrnla 171 



MOXOPTERI A Marian 225 



MOXTICULOPORA sp.? 270,273 



MUHCHIBOXIA 79 



bellicincta 80 



bicincta 79 



gracilis 



Milleri 9 



sp.? 271 



MYALINA 237 



anculata 237 



Page. 

 MYALIXA Continued. 



ampla 238 



Apacbesi 225,237 



aviculoides 225 



congeneris 237 



Nemesis 237 



Nessus 238 



Perniiana 225 



St. Ludovica 237 



ml H | uad ra t a 237, 238 



?Swallovi 225 



sp.? 225 



MYTILARCA 168 



Chemungensis 1O8 



dubia 168 



oviformis 169 



sp.? 276 



(Plot homy t ilus) ovifoi mis 168, 169 



MYIILUS Chcniungensis 108 



NATICOPSIS (like X. wquistriata) 278 



!'' 278 



XAriiM's (like X. digonis) 281 



XUCLEO6PIRA 147 



couciniia 147 



NUCULA 172,241 



nrata 225 



bi'llistriata 241 



insularis 241 



? le vata 242 



levatifortne 241 



Xiotica 172 



Kcscuensis 172 



varicosa 241 



sp.; 172 



NUCULITES triangulus 277 



XYA6SA 173 



parva 173 



recta 174 



OBOLELI.A 14,67 



?ambigna 3,67,68 



cbromatica 68 



desiderata 68 



desquamata 68 



discoidea 3, 14 



68 



... 68 



68 



gemma 



polita 



sagit tails 



Salteri t. 



? SoabriniE 



sp.? 



OGYOI A 



? probleinatica 



? spinosa 



17 

 270 



3G 

 63 

 63 



