874 



NORTH AMERICAN INDEX FOSSILS. 



bicornis, 



Climacograptus, m, I 32 



Dicranella, f, II 349 

 bicornuta, Moorea, f, II 350 

 bidentata, Nassa, f, I 764 

 bidorsata, Tetranota, f, I 612 

 bifidus, Didymograptus, m, I 31 

 biforata, Platystrophia, f, I 258 

 bifurcata, Diploporaria, f, I 151 

 bigsbyi, 



Actinoceras, n, II 115 



Maclurea, f, I 664 



Tetragraptus, m, I 29 

 bilateralis, Scofieldia, f, II 356 

 bilineatum, Spyroceras, n, II 63 

 bilix, 



Cyclonema, n, I 668 



Sigaretus, m, I 715 

 billingsi, 



Arthroclema, n, I 153 



Billingsella, f, I 211 



Cyrtodonta, f, I 409 



Favosites, m, I 87 



Hyolithes, m, II 3 



Protorthis, f, I 211 



Strophomena, f, I 223 



Zitteloceras, n, II y6 

 bilobus, Bilobites, m, I 259 

 binneyi, Vorticifex, m, I 817 

 biplicatus, Leptosolen, m, I 570 

 bipliciferus, a, um, 



Cancellaria, f, I 798 



Trigonostoma, n, I 798 

 biscatenaria, 



Pleurotoma, f, I 803 



Surcula, f, I 803 

 biseriatus, Productus, m, I 244 

 bispinosum, Aspidoceras, n, II 188 

 bispiralis, Lophospira, f, I 636 

 bisulcata, 



Corbula, f, I 574 



Cyclospira, f, I 309 



Grammysia, f, I 381 

 biturbinatus, Dizygocrinus, m, II 543 

 blakii, 



Ceratites, m, II 158 



Gytnnotoceras, n, II 158 

 blattinoides, Gerapompus, m, II 433 

 bloomfieldensis, Sphaerocystites, m, II 



471 

 boiplex, 



Bittium, n, I 747 



Styliferina, f, I 747 

 bolliaformis, Jonesina, f, II 359 

 boltoni, 



Arctinurus, m, II 307 



Lichas, f, II 307 

 bondi, Plectoceras, n, II 73 

 bonoensis, Platycrinus, m, II 519 

 boothi, Cryphaeus, m, II 329 

 borealis, is, e, 



Anisomyon, m, I 813 



borealis, is, e, 



Duncanella, f, I 76 



Hebertella, f, I 254 

 bosquense, Cerithium, n, I 748 

 bovidens, Dielasma, n, I 303 

 bowdeni, Lophospira, f, I 635 

 boycii, Cyrtactinoceras, n, II 117 

 boydi, Actinopteria, f, I 449 

 bradleyi, Halysiocrinus, m, II 504 

 brainardi, 



Cameroceras, n, II 39 



Proterocameroceras, n, II 39 

 branneri, 



Gastrioceras, n, II 143 



Glauconia, f, I 738 



Vicarya, f, I 738 

 brazoensis, 



Pachydiscus, m, II 173 



Turrilites, m, II 211 

 breviceps, Metopolichas, f, II 311 

 brevicorne, Cyclostomiceras, n, II 121 

 brevidentata, Cassidaria, f, I 759 

 brevifrons, Nemodon, m, I 405 

 brevirostris, Perissolax, f, I 767 

 brevis, is, e, 



Agaricocrinus, m, II 534 



Palseoneilo, f, I 400 



Scaphites, m, II 177 



Soleniscus, m, I 700 

 breweri, Puzozia, f, II 170 

 bridgerensis, 



Ophioglypha, f, II 571 



Physa, f, I 816 

 hrisa, Pterinea, f, I 420 

 broggeri, Holmia, f, II 263 

 brongiarti, Opter, m, II 439 

 browni, Pentagonaster, m, II 572 

 brunneri, Zetobora, f, II 445 

 bryani, 



Eutrephoceras, n, II 108 



Nautilus, m, II 108 



Ostrea, f, I 464 

 bucculentum, Platyceras, n, I 684 

 bucinum, Nephriticeras, n, II 85 

 buelli, Salpingostoma, n, I 614 

 bulbiformis, Amauropsis, f, I 722 

 bulbosus, a, um, 



Ancyrocrinus, m, II 569 



Tancredia, f, I 554 

 bulbulus, Caryocrinus, m, II 465 

 bulimiformis, Bulimorpha, f, I 699 

 bullatus, Agaricocrinus, m, II 534 

 bulloides, Globigerina, f, I 10 

 burlingtonensis, is, e, 



Edmondia, f, I 388 



Pecten, m, I 499 



Platycrinus, m, II 518 

 Productus, m, I 244 

 Rhipidomella, f, I 266 



Rhoechinus, m. II 582 

 byblis, Conularia, f, II 14 

 byrnesi, Byssonychia, f, I 431 



