io8 



Bulletin 15 



418 



Nautilus rockfordensis 140, 210 



trisvilcatus 140, 210 



Neritina f errussaci 322 



Neerrepen, Sands of, charac- 

 teristic species 332 



New Albany shale 238, 239 



list of its fossils 239 



near Crothersville 143 



at Scipio 138 



New Providence shale 1 34 



fossiliferous 146 



New species from L,a.01igocene388 



Niso urnbilicata 97 



pi. 12, fig. 13. 



Nucleocrinus angularis 179 



greenei 1 79 



venustus 1 80 



verneuili 179 



Nucula chipolana 369, 373 



clays 334 



greppini 323 



herzeri 201 



hians 1 40, 200 



laevigata 323 



lirata 200 



neda 201 



niotica 149, 201 



sericea 384 



sinaria 375 



vicksburgensis 384 



Nuttall, quoted 230 



Oak Grove sands, The 374 



, Species from the 374 



Obeliscus perexilis 98 



Ocala nummulitic limestone... 356 



0<5lonaria clavigera 214 



devonica 214 



ovata 214 



stigmata 214 



stigmata var. loculosa 214 



stigmata var. oblonga 214 



Odontostomia insignifica 99 



Oligocene of the Adour valley. 348 



in Alabama 370 



series. Base of 337 



in Belgium, first classifi- 

 cation of 328 



in Brittany 34 1 



of the Central plateau 349 



of the Central plateau, 

 Fontanne's secflion of the. 350 

 , Correlation table of 400 



, Classification of 330 



beds, European, Correla- 

 tion of, with those of the 

 Southern United States.... 398 

 of Europe and U. S. com- 

 pared, Bull. 15 311-414 



fauna, Resemblance of, in 

 Europe to that of South- 

 ern States 392 



of France and Belgium 319 



of Gironde valley 343 



in Louisiana 386 



of the Mainz basin. Sec- 

 tion of 350 



in Mississippi 38 1 



of Paris basin 335 



, Proposal of name 327 



of the Saone and Rhone 



valleys 350 



series in detail in the sev- 

 eral states 355 



in southwestern France.. ..342 

 beds in Southern States, 



Correlation of 390-1 



of the Southern States 

 with that of western Eu- 

 rope, Comparison and 



Correlation of the... 392 



of Sovithern U. S., Gen- 

 eral extent 352 



species, European, in A- 

 merican Eocene and Mi- 

 ocene beds 395 



species. Identity of, in 



both continents 393 



in Texas 389 



of western Europe, a re- 

 view of the 326 



Oliva basterotina 320 



def resnei 320 



litterata 370 



mississippiensis 383 



subclavatula 320 



Olivella gracilis 29 



mediavia 29 



pi. 3, fig. 12. 



mutica 370 



Olivula staminea 30 



Oncoceras constridlum 294 



Onychodus sigmoides 139, 141 



142, 215 



Oph ilfta coniplanata 252 



discus 252 



pi. 15, figs. 5, 6. 



