INDEX OF SPECIFIC NAMES. 



1363 



extenuatus (a, um) — Didymograpsus, 

 Ectomaria, Ectomaria prisca, Grap- 

 tolithus, Murehisonia, Opisthoptera, 

 Solenospira, Solenospira prisca, 

 Technophorus. 



faba — Colpomya, Leperclitia, Lyonsia, 

 Modiolopsis, Nuculites. 



fabaformis — Modiolopsis. 



faberi — Agelacrinites, Agelacrinus, Chiro- 

 spongia, Clidophorus, Cyrtoceras, Goin- 

 phoceras, Holocystites, Lepidodiscus, 

 Lichas, Modiolopsis, Orthodesma,Ortho- 

 notella, Palaeoconcha, Platycystites, 

 Pyanomya, Rhytirnya, Sphenoliuin, 

 Technophorus. 



f abius — Agnostus . 



fabula — Cleidophorus, Clidophorus (Nu- 

 cula), Clidophorus (Nuculites). 



fabulina — Leperditia hisingeri. 



fabulites — Cytherina, Leperditia. 



facetus — Cyathophyllum. 



facula — Sceptropora. 



faircbildi — Euomphalus, 



fairmountensis — Dalmanella. 



falcatus — Eunicites. 



falciformis — Escharopora, Ptilodictya. 



falconer! — Glaucocrinus. 



falesi — Monticulipora, Prasopora . 



falx — Cyrtoceras, Mselonoceras. 



famelicus — Ptilodictya. 



fanningana (um) — Ditcecholasma, Dunca- 

 nella, Petraia. 



farcimen — Gyroceras. 



farctus — Pachydictya, Ptilodictya. 



farnswortbi — Aphetoceras, Lituites, Tar- 

 phyceras. 



farringtoni — Habrocrinus. 



fasciatus (a) — Cyathocrinus, Hebertella, 

 Hebertella (Schizonema), Hebertella 

 (Schizoramma), Leptaena, Lophospira, 

 Orthis, Orthostrophia (Sch)izoramma, 

 Rafmesquina, Strophomena. 



fascicularis — Drymopora, Syringopora 

 (Drymopora). 



fastigiatum — Clathrodictyon. 



fatua (um) — Trichonema, Trochouema 

 (Eunema). 



fausta — Hebertella, Ophileta, Orthis. 



favosa — Calamopora, Favosites. 



favosideus (a) — Faviatella, Favoaites. 



favositiformis — Parallelopora. 



favositoidea — Calapoecia. 



f avo sus — Favosites . 



favus — Nidulites. 



fayettensis — Calymene. 



featherstonhaughi — Cyrtoceras. 



fecunda — Ctenodonta, Nucula (Tellino- 

 mya). 



f eildeni — S tropheodonta. 



fenestelliformis — Pachydictya, Phsenopo- 

 ra, Ptilodictya. 



fenestratus (a) — Amplexus, Anthaspi- 

 della, Echinocrinites, Echinocrinus, 

 Ecliinoencrinites, Phylloporina, Rete- 

 pora, Rhiuidictya, Stictopora, Subre- 

 tepora, Sulcopora, Tetracystis. 



ferox — Nautilus. 



ferrisi — Metopolichas. 



ferruginea (um) — Avicula, Cypricardites, 

 Cyrtodonta, Lingulella, Nuculites (Clei- 

 dophorus). 



fertilis (a) — Batostoma, Batostoma circu- 

 lare, Orthis (Dalmanella). 



ferum — Orthoceras, Spyroceras. 



f e stinata — Camarotcechia. 



fibrata (um) — Syringopora, Tetradium. 



fibrosus (a) — Alveolites, Calamopora, Cla- 

 dopora, Hindia, Stenopora. 



ficello striata — Homceospira. 



fidelis — Stictopora. 



fieldeni — Amplexus, Halysites catenu- 

 laria. 



filiasa — Amplexopora, Chgetetes, Lepto- 

 trypa, Monotrypa, Monticulipora. 



filiciformis — Buthotrephis, Chloephycus, 

 Strophostylus. 



filiformis (a) — Didymograptus, Ortho- 

 ceras. 



filio sa — Amplexopora, Monticulipora. 



filiramus — Dictyonema. 



fdistriatus (a) — Ctenodonta, Rafmesquina 

 winchesterensis, Strophonella, Techno- 

 phorus. 



filitextus (a, um) — Hemipronites, Lep- 

 taena, Pleurocystis, Pleurotomaria, 

 Streptorhynchus, Strophomena. 



fillmorensis — Cyrtodonta afhnis, Cyrtoli- 

 tes retrorsus, Lophospira, Primitia, Pri- 

 mitiella. 



filmorensis — Prasopora insularis. 



filosus (a, um) — Crania, Cyrtoceras, Cyr- 

 tolites, Dalmanella emarcerata, Obolus, 

 Orbicula, Orbiculoidea, Rauffella, Schi- 

 zocrania, Trcmatis, Turrilepas. 



