1402 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



trentonensis — continued. 

 Lingula, Lyonsia, Metoptoma, Modio- 

 lopsis, Monotrypella, Monticulipora 

 (Heterotrypa), Odontopleura, Onco- 

 ceras, Orthoceras, Orthoceratites, Palse- 

 oglossa, Pholidops, Phylloporina, Platy- 

 metopus, Platynotus, Plectorthis plica- 

 tella, Primicorallina, Prolobella, Proto- 

 warthia cancellata, Pseudosphserexo- 

 chus, Pterinea, Retepora, Rhinidictya, 

 Romingeria, Sabellarites, Sinuites can- 

 cellata, Spirifer, Strophomena, Subre- 

 tepora, Tryblidium, Zittelella. 



trescotti — Pterinea (Tolmaia). 



triangularis — Conradella, Cypricardites, 

 Lumbriconereites, Phragmolites. 



triangulatus (a) — Asaphus, Conularia, 

 •Eusarcus, Grammysia, Orthonota. 



triangulus — Ecculiomphalus, Eccyliom- 

 phalus, Eccyliopterus. 



triarthrus — Paradoxides. 



tribulis — Atrypa, Dicellocephalus, Dikel- 

 ocephalus. 



tricarinatus (a) — Hormotoma, Lophospira, 

 Murchisonia, Pleurotrochus, Trocho- 

 nema, Straparollus. 



tricenaria — Orthis, Platystrophia. 



trichomane s — S trophograptus. 



tricornis — Cryptograptus, Cryptograptus 

 (Idiograptus), Diplograptus, 



tridactylus — Ichnophycus. 



tridens — Dawsonia . 



tridentatus — Climacograptus bicornis. 



tridigitatum — Dactylophycus. 



trifidus — Asaphoidichnus, Diplograptus, 

 Diplograptus foliaceus, Leptograptus 

 flaccidus spinifer. 



trifurcatum — Anisopbyllum. 



trigonostoma — Diaphorostoma, Platyosto- 

 ma, Platyostoma niagareDsis, Trerna- 

 notus, Bucania, Xenophora. 



trilineata — Eunema, Pleurotomaria. 



triliratus — Euompbalus. 



triloba — Ceramoporella, Illeenoides. 



trilobatus (a, um) — Bellerophon, Buca- 

 nella, Bucania, Bucaniella, Conchidi- 

 um, Leptama, Planorbis, Streptelasma 

 latusculum, Streptelasma rusticum, 

 Stropbomena. 



trilobioides — Cancer. 



trimicleus — Orthis. 



tripectinatus — Callocystites. 



tripla — Bucania. 



triplesiana — Stricklandinia. 



triplicata — Beyricbia lata, Halliella. 



triplicatella — Orthis, Orthis plicatella, 

 Plectorthis, Plectorthis fissicosta, Plec- 

 torthis plicatella. 



triquetra — Avicula. 



trisectus — Agnostus. 



triserialis — Pachydictya. 



trisinuatus (a) — Athyris, Meristina, Pen- 

 tamerus. 



trisulcatus (a) — Beyrichia, Calymene, 

 Klcedenella, Phacops. 



triton — Piloceras. 



tritonia — Helicotoma, Orthis. 



trochiscus — Euomphalus, Polygyrata, 

 Rapliistoma. 



trochonemoides — Lophospira. 



trombetana — Pholidops. 



trombetensis — Tentaculites. 



troosti — Bellerophon, Chasmops, Colum- 

 naria, Dalmanites, Favosites, Pterygo- 

 metopus, Symbathocrinus. 



tropidophora — Murchisonia, Pleurotoma- 

 ria, Pleurotomaria (Scalites). 



truncatula — Cuneamya. 



truncatus (a) — Bolbocephalus, Discinia, 

 Eurymya, Ischyrodonta, Modiolodon, 

 Modiolopsis, Orbicula, Orbiculoidea, 

 Whitella. 



trusitum — Orthoceras, Protokionoceras. 



tuber — Bellerophon. 



tuberculatus (a) — Arges, Bathyurus, Bey- 

 richia, Brachiospongia, Carabocrinus, 

 Chsetetes, CUmacograptus bicornis, Co- 

 rydocephalus, Eucalyptocrinus, Homo- 

 trypa, Hystricurus, Lichenocrinus, 

 Monticulipora, Monticulipora (Mono- 

 trypa), Spatiopora. 



tuberculosus (a) — Encrinurus, Fistuli- 

 pora, Rhinopora, Trematopora. 



tuberoides — Favosites. 



tuberosus (a) — Pattersonia, Scolithus, 

 Strobilospongia. 



tubularis (e) — Cyathodictya, Cyathophy- 

 cus, Palseophycus, Stromatopora. 



tubulistriata — Atrj'pa. 



tubulosa (um) — Ceramoporella, Diameso- 

 pora, Phytopsis, P^hinopora, Tremato- 

 pora. 



tumidifrons — Illsenus. 



tumidosus — Agnostus. 



tumidula — Athyris, Leperditia, Primitia. 



