1358 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



cyclopyge — Agnostus, Lejopyge. 



cyclostomus (a) — Bucarua, Pleurotoma- 

 ria, Strophostylus. 



cyclus — Orthis. 



cylindracea — Amplexopora. 



cylindricus (a, urn) — Actinostroma tenui- 

 filatum, Agraulos, Arionellus, Athyris, 

 Atrypa, Beatricea undulata, Bythocy- 

 pris, Bythocypris (Cytherellina), Ca- 

 ryocystites, Clathrodictyon cystosum, 

 Cymatonota, Cytherina, Dendrocrinus, 

 Holocystis, Holocystites, Homocrinus, 

 Homotrypa, Isocliilina, Lapworthura, 

 Leperditia, Merista, Meristella (Meri- 

 Btina), Orthodesma, Palseocoma, Penta- 

 merus oblongus, Ptychaspis, Tseniaster, 

 Taeniura, Thalamocrinus, Whitfieldella. 



cylix — Astylomanon cratera. 



cymbula — Carinaropsis, Orthodesma, 

 Pkragmostoma. 



cypha — Orthis, Platystropbia, Platystro- 

 phia lynx. 



cyrtodontoidea — Pterinea. 



cystata — Dekayella, Dekayia frondosa. 



cystosa (um) — Clathrodictyon, Stronia- 

 topora. 



dactioloides — Lunulitea. 



dactylioloides — Lunulites 



dactylodus — Lumbriconereites. 



dactyl(i)oides — Cerionites, Cyclocrinus, 

 Cyrtoceras, Pasceolus 



dactylus — Lyriocrinus, Melocrinus, Mar- 

 eupiocrinites, Rhodocrinus (Lyriocri- 

 nus). 



dalei (ii) — Callopora, Chgetetes, Hallopora, 

 Monticulipora, Monticulipora ramosa. 



dalli — Tr imerella . 



dalmani (i) — Syringopora. 



danaanum — Clisiophy Hum . 



danae— Dalmania, Dalmanites. 



danai — Acidaspis. 



danbyi — Avicula, Pakeopecten. 



danielsi — Ilkenus. 



danvillensis — Saccospongia. 



daphne — Fusispira, Lingula, Straparolli- 

 na, Straparollus, Subulites. 



dardanus (um) — Cyrtoceras, Cyrtor(h)i- 

 zoceras. 



darwini (i) — Bathyurus, Cyclocrinus, 

 Kionoceras, Orthoceras, Pasceolus. 



davidsoni — Orthis, Orthis calligramma, 

 Rhinobolus, Stricklandinia. 



davisi — Lingula, Lingulella. 



dawsoni — Dendrograptus, Homalonotus, 

 Homotrypa, Monticulipora, Monticuli- 

 pora (Heterotrypa), Palaeocystites, Pa- 

 Iseosaccus, Phylloporina, Subretepora. 



daytonensis (e) — Actinoceras, Cyatho- 

 phyllum celator, Hebertella, Illsenus, 

 Orthis, Orthoceras, Strophonella, Za- 

 phrentis celator. 



debilis — Glossograptus ciliatus, Syringo- 

 pora, Trematopora. 



decadactylus — Glyptocrinus, Heterocri- 

 ne. 



decemplicatus (a) — Delthyris, Spirifer, 

 Spirifera, Rhynchonella. 



decipiens— Batostoma, Chsetetes, Dicrano- 

 peltis, Ischyrodonta, Leptsena, Leptella- 

 Lichas, Liospira, Lyellia, CEnonites, 

 Peronopora, Pyrenomoeus, Raphistoma, 

 Vanuxemia. 



deckerensis— Edmondia, Klcedenia man- 

 liensis, Orthothetes, Rhynchonella, 

 Schuchertella, Stenochisma. 



declinata — Favosites. 



declivis — Agnostus acadicus, Bellero- 

 phon, Helicotoma, Modiolodon, Rafi- 

 nesquina, Strophomena. 



decorus (a, um) — Beyrichia, Cyclonema, 

 Emmelezoe, Eucalyptocrinus, Hypan- 

 thocrinites, Hypanthocrinus. 



decrescens — Orthoceras. 



decursa— Lophospira. 



decurta — Murchisonia. 



decussatus (um) — Conchidium, Dimor- 

 phograptus, Pentamerus. 



deflecta (um) — Atrypa, Dinorthis (Plse- 

 siomys), Glossina, Leptasna, Lingula, 

 Orthis, Palseoglossa, Plaesiomys, Strep- 

 torhynchus, Strophomena, Zygospira. 



deformata — Archinacella, Crania, Orbi- 

 cula. 



deformis — Discina, Metoptoma, Orthis, 

 Orthothetes, Schuchertella, Stephano- 

 crinus, Stricklandinia. 



defrancii — Conotubularia, Orthoceras, Or- 

 thoceratites. 



deiopeia — Clathrospira, Pleurotomaria. 



dekayi — Eurypterus. 



delafieldi — Amphidesma. 



delatatus — Bellerophon . 



deleta — Archinacella, Carinopsis. 



delicatulus (a, um)— Archfeocrinus, By- 

 thopora, Callithamnopsis, Chsetetes, 

 Corynotrypa, Dictyonema, Hippothoa, 



