1502 BULLETIN 92. UNITED STATES NATIONAL MUSEUM. 



A mplc xus junctus Hall. 111. 



A mplexus shumardi (Edwards and Haime). Iowa. 



A mplexus uniformis Hall. 111. 



A mpyx niagarcnsis Van Ingen. Ark. (St. Clair.) 



Anisocrinus oswcgocnsis (Miller and Gurley). 111. 



Arctinurus obvius (Hall). Iowa. 



Ascoccras southwclli Worthen. HI. 



Astylospongiaff Christiana Meek and Worthen. 111. 



A uloccrium savagci Parks. 111. 



Bucania cyclostoma Calvin. Iowa. 



Bucania pcrornata Calvin. Iowa. 



Bumaslusniagarcnsis (Whitfield). Ark. (St. Clair.) 



Cahjmcne allirostris Van Ingen. Ark. (St. Clair.) 



Ceratoccphala coalescens Van Ingen. Ark. (St. 

 Clair.) 



Ceratoccphala dcpauperata Van Ingen. Ark. (St. 

 Clair.) 



Ceratoccphala goniata Warder. Ohio. 



Ceratoccphala nodulata Van Ingen. Ark. (St. Clair.) 



Ccrionitcs daclyloides (Owen). Iowa. 



Clathrodictyon cystosum Parks. Iowa. 



Clathrodictyon vcsiculosum Nicholson and Murie. 

 111. 



Conocardium tcgulum Hall. 



Cordylocrinus? dubius Rowley. Mo. (Bainbridge.) 



Corydoccphalus depaupcratus. Ark. (St. Clair.) 



Corydoccphalus phtyctainoides (Green). Ohio; Ark. 

 (St. Clair.) 



Cyathocrinus? oralis Rowley. Mo. (Bainbridge.) 



Cyalliophyllum radicula Rominger. Iowa. 



Cyphaspis arkansanus Van Ingen. (St. Clair.) 



Cyrtograptus ulrichi Ruedemann. Mo. (Bain- 

 bridge.) 



Cyrtorizoccras dardanum (Hall). 111. 



Cystiphorolites minor (Rominger). Iowa. 

 Dulmanclla elcgantula (Dalman). 111., Iowa, etc. 

 Dalmanitcs arkansanus Van Ingen. Ark. (St. Clair.) 

 Dalmanitcs vigilans Hall. Wis., Ark. (St. Clair.) 

 Dawsonoccras annulatum (Sowerby). Iowa, Ohio, 



etc. 

 Dciphonforbcsi Barrande. Ark. (St. Clair.) 

 Dinphorostoma trigonostoma (Meek). Ohio. 

 Dicranopcltis arkansana (Van Ingen). Ark. (St. 



Clair.) 

 Dimorphograptus decussatus Elles and Wood, Ark. 



(Blaylock.) 

 Discoceras graftonense Meek and Worthen. 111. 

 Discoccras marshi (Hall). 111. 

 Encrinurus ornatus Hall and Whitfield. Ohio, etc. 

 Goniophyllum pyramidah (Hisinger). Iowa. 

 Halysitcs catcnularia (Linnaeus). 111., Wis., etc. 

 Ilalysites radiatus Whitfield. Iowa. 

 Ilclicopora latispiralis Claypole. Ohio. 

 Hclioliies interstinctus (Linnaeus). 111., Iowa, etc. 

 Hcliolites subtubulatus (McCoy). Ohio, 111., etc. 

 Hindia sphxroidalis Duncan. HI., Iowa, etc. 

 Holopea grandis Calvin. Iowa. 

 Illsenus daniclsi Miller and Gurley. 111. 

 Lccanocrinus hemisphcricus Rowley. Mo. (Bain- 

 bridge.) 

 Lycllia glabra (Owen). Iowa, 111. 

 Melocrinus wittenbergensis Rowley. Mo. 

 Monograptus argutus Lapworth. Ark. (Blay- 

 lock.) 

 Monograptus distans (Portlock). Ark. (Blay- 

 lock.) 

 Monograptus grcgarius Lapworth. Ark. (Blay- 

 lock.) 



Odontoplcura arkansana Van Ingen. Ark. (St. 

 Clair.) 



Odontoplcura ortoni (Foerste). Ark. (St. Clair.) 



Orthoceras franklincnse Miller. Ind. 



Orthoccras loxias Hall. Wis. 



Orthoceras unionense Worthen. 111. 



Palteodictyota bella (Hall and Whitfield). Ohio. 



Pentamcrus oblongus Sowerby. Iowa, Ohio. 



Pentamcrus oblongus corrugalus Weller and David- 

 son. Iowa. 



Pentamcrus oblongus maquokcia Hal! and Clarke. 

 Wis., Iowa. 



Pentamcrus oblongus subrectus Hall and Clarke. 

 Iowa. 



Pentamcrus pergibbosus Hall and Whitfield. Ohio. 



Pericchocrinus ornatus (nail and Whitfield). Ohio, 

 Ind. 



Petalocrinus inferior Bather. Iowa. 



Pctalocrinus{?) major Weller and Davidson. Iowa. 



Petalocrinus mirabilis Weller and Davidson. Iowa. 



Phragmoccras byronense Worthen. 111. 



Phragmoccras ellipticum Hall and Whitfield. Ohio. 



Pisocrinus glabellus Rowley . Mo. (Bainbridge.) 



Pisocrinus globosus (Ringueberg). Mo. (Bam- 

 bridge. ) 



Pisocrinus gorbyi Miller. Mo. (Bainbridge.) 



Pisocrinus granulosus Rowley. Mo. (Bain- 

 bridge.) 



Plcctambonitcs productus Hall and Clarke. Ohio. 



Preset us corrugatus Van Ingen. Ark. (St. Clair). 



Proctussubannulatus Van Ingen. Ark. (St. Clair.) 



Ptychophyllum cxpan'sum (Owen). Iowa, Wis. 



Rcceptaculitcs ohioensis nail and Whitfield. Ohio. 



Retiolitcs (Gladiograptus) pcrlatus (Nicholson). 

 Ark. (Blaylock.) 



Rhinobolus davidsoni Hall and Clark. Wis. 



Rhipidomella hybrida (Sowerby). 111., Iowa, etc. 



Romingcria niagarcnsis (Rominger). Iowa. 



Schuchertclla subplana (Conrad). Mo., etc. 



Skcnidium? nodocostatum Rowley. Mo. (Bain- 

 bridge.) 



Sphxrcxochus romingeri Hall. Ark. (St. Clair.) 



Staurocephalus murchisoni Barrande. Ark. (St. 

 Clair.) 



Straparollus bicarinatus Calvin. Iowa. 



Straparollus tricarinatus Calvin. Iowa. 



Strcptelasmapatula Rominger. Iowa. 



Strcptclasma spongaxis Rominger. Iowa. 



Strcptis grayi (Davidson). Ark. (St. Clair.) 



Striatopora (Stribalocystites?) elongatus (Rowley). 

 Mo." 



Stribalocystilcs missouriensis (Rowley). Mo. 

 (Bainbridge). 



Stricklandinia castdlana White. Iowa. 



Stricklandinia deformis Meek and Worthen. 111. 



Strombodes gigas (Owen). Iowa, Wis. 



Strombodcs mamillaris (Owen). Iowa, Wis., etc. 



Trochoaras xncas Hall. Iowa. 



Troostocrinus? dubius Rowley. Mo. 



Vermipora niagarcnsis Rominger. Iowa. 



Zaphrcntis pressula Hall. 111. 



Zaphrcntis stokesi Edwards and Haime. Iowa. 



NIAGARAN OF NORTHERN INDIANA. 



Amphicoilia ncglccta (McChesney). 

 A nastrophia intcrnascens Hall. 

 Anodontopsis wabashensis Kindle and Breger. 

 Ascoccras indianensis Newell. 



