1448 



BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Piloceras gracile Billings. (H.) 

 Piloceras triton Billings. (G.,H-) 

 Piloceras worthenl Billings. (H.) 

 Pleurotomaria agari.ita Billings. (H.) 

 PlciiTOtomaria ( Troclionema?) calphurnia (Billings). 



(G.) 

 Pleurotomaria harpya Billings. (G.) 

 Pleurotomaria hyale Billings. (F.) 

 Pleurotomaria normani Billings. (G.) 

 Pliomcrops insularis (Billings). (G.) 

 Pt ilograptus plumosus (Hall). (P.) 

 Pycnoccras apertum Hyatt. 

 Pycnoccras calciferiforme Hyatt. 

 Raphistoma liortensia (Billings). (II.) 

 Shumardia glacialis Billings. (P.) 

 Straparollina pclagica Billings. (P.) 

 Syntrophia calcifcra (Billings). (P.) 

 Tarphyceras aucoini Hyatt. 

 Tarphyccras calcifcrus (Billings). (P., G.) 

 Tarphyceras extension Hyatt. 

 Tarphyceras prematurum Hyatt. 

 Tctragraptus denticulatus (Hall). (P.) 

 Tetragraptus fruticosus (Hall). (P.) 

 Tctragraptus licadi (Hall). (P.) 

 Tctragraptus scrra (nail). (P.) 

 Trachyum cynthiforme Billings. (G.) 

 Trachyum rugosum Billings. (G.) 

 Trochocenv*? incipiens Barrande. 

 Turritoma acrea (Billings). (G.) 



ORDOVICIAN FAUNAS. 



ST. PETEH SANDSTONE OF MISSISSIPPI VALLEY. 



Cranial?) rcversa Sardeson. 



i tenodonta absimilis (Sardeson). 



Ctcnodonta novicia (Sardeson). 



Cyrtodonta descriptus (Sardeson). 



( iniodonta dignus (Sardeson). 



Cyrtodonta finitimus (Sardeson). 



Ltpcrditia subhrvis (Shumard). (Joachim Is.) 



Modiolopsia affinis Sardeson. 



Modiolopsis contigua Sardeson. 



Modiolopsis fountainensis Sardeson. 



Modiolopsis grcgalis Sardeson. 



Modiolopsis litoralis Sardeson. 



Modiolopsis postica Sardeson. 



Ophileta fausta Sardeson. 



Orthoceras minncsotcme Sardeson. 



Platyccras vctulum Sardeson. 



Pleurotomaria ait ns Sardeson. 



Psiloconcha si necta (Sardeson). 



, llatfucoida Sardeson. 

 Scolithus minnesotemis James. 

 1 'd n it re m ia fragosa (Sardeson). 



CHAZYAN OF CHAMPLALN AND OTTAWA VALLEYS. 



(Day Point=D.; Crown Point=C; Valcour=V. 

 Aylmer=A.) 



Ambonychiaf curvata Raymond. (E>.,C.) 

 Amphilichas minganensis (Billings). (D.. V.,C.) 

 Ampyx (Loncliodomas) halli (Billings). (C.) 

 ^4 rchxocrinus? delicatulus Hudson. (V.) 

 Archinacella deformata (Hall). (D.,V.) 

 Archinacella propria Raymond. (C.,D.) 

 Barrandcoceras natator (Billings). (V.) 

 Basilicus marginalia (nail). (D.,C.) 

 Bathyurellus brciispinus Raymond. (D.) 

 Bathyurellus m inor Raymond. (C.) 



Blastoidocrinus carcharizedens Billings. (V.) 

 Bucania sulcatina (Emmons). (D., V.) 

 Bumastus erastusi (Raymond). (C, V.) 

 Bumastus globosus (Billings). (D.,V.) 

 Bumastus limbatus Raymond. (V.) 

 Buthotrcphis antiquata nail. 

 Camarclla longirostris Billings. (D.,Y.) 

 Camarella varians Billings. (C.,V.) 

 Camarotccchia major Raymond. (V.) 

 Camarotccchia orientalis (Billings). (A.) 

 Camarotccchia plena Hall. (A.,V.) 

 Camarotccchia pristina Raymond. (C. , V.) 

 Camcroceras curvatum Ruedemann. (V.) 

 Camcroceras tcnuiscptum (Hall). (D..V.) 

 Camcroceras vclor (Billings). (A.) 

 Canadocystis barrandi (Billings). (A.) 

 Canadocystis emmonsi (Hudson). (C, V.) 

 Carabocrinus geomctricus nudson. (V.) 

 Ccratocephala narrawayi Raymond. (C.) 

 Ceraurvs granulosus Raymond and Barton. (C.) 

 Ceraurus hudsoni Raymond. (C.) 

 Chasmatopora gracilis (Hall). 

 Chasmatopora inccpta (Hall). 

 Cheirocrinus forbesi (Billings). (A.) 

 Cleiocrinus pcrforatus (Hudson). (V.) 

 Clidophorus obscurvs Raymond. (C.) 

 Clionychia. marginalia Raymond. (D.) 

 Clionychia mytiloiJcs (Hall). 

 ( litambonites multicostus (Hudson). (V.) 

 Clitambonitesporcia (Billings). (A.) 

 Clisospira basslcri Raymond. (D?.) 

 Conocardium becchcri Raymond. (V.) 

 Conularia triangulata Raymond. (V.) 

 Cryptozoon perkinsi Seely. 

 Ctcnodonta bidorsata Raymond. (C.) ■ 

 Ctcnodonta dabiaformis Raymond. (C.) 

 Ctcnodonta parvidens Raymond. (A.) 

 Cybeloides primus (Raymond). (D., C.) 

 Cycloeerasf rectiannulatum (Hall). 

 Cyrtactinoceras boycii ("WJutfield). (('., V.) 

 Cyrtactinoceras champlainensc Ruedemann. (V.) 

 Cyrtoceras mccoyi Billings. 

 Cyrtodonta jancscillcnsia Ulrich. (V.) 

 Cyrtodonta scala Raymond. (C.) 

 Cyrtodonta solitaria Raymond. (C.) 

 Cyrtospira raymondi (Hudson). (C, V.) 

 Deltoccras vaningeni Ruedemann. (C.) 

 Deocrinus aspcratus (Billings). (A.) 

 Diaphorostoma auriformc (Hall). 

 Dinorthis (Ptesiomys) platys (Billings). (C.) 

 Dinorthis ( T alcourea) strophomenoides (Raymond). 



(C.) 

 Eccyliom phalus fredcricus Raymond. (C.) 

 Eccyliomphalus leal mi (Raymond). (C.) 

 Eccyliomphalus proclivis (Raymond). (C.) 

 Eccyliopterus vagrans (Raymond). (C.) 

 Endoceras(f) hudsoni Ruedemann. (V.) 

 Endoccras magister Ruedemann. (V.) 

 Endodesma transceps (Raymond). (C.) 

 Eoharpes antiquatus (Billings). (D., C.) 

 Eoharpes ottawaensis (Billings). (D.) 

 Eotomaria obsoleta Raymond. (D., C.) 

 Eurychilina latimarginata (Raymond). (D. C. V.) 

 Fletcheria incerta (Billings). 

 Geisonoceras shumardi (Billings). (D. C.) 

 Girvanella atrata (Seely). (C.) 

 Girvanella brainerdi (Seely). (C.) 

 Girvanella ocellata (Seely). (C.) 



