1504 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Piscina novascoika Ami. 



Discina or kn tails Ami. 



Goniophora bclluto Billings. 



Goniopliora consimilis Billings. 



Goniophora mediocris Billings. 



Goniopliora transicns Billings. (S.) 



Grammysia acadica Billings. (M., S.) 



Grammysia remota Billings. 



Grammysia rustica Billings. (S.) 



Holopca rcversa Hall. 



Homalonotus dawsoni Hall. (M., S.) 



Leperditia sinuata Hall. 



Leptsena rhomboidalis (Wilckens). (R., S.) 



Leptodesma rhomboidca (Hall). (R.) 



Leptodomus (Sanguinolites) aratus Hall. 



Afegambonia cancellata Hall. 



Mcgambonia striata Hall. 



Mcsopalxaster parviusculus (Billings). 



Modiolopsis exills Billings. 



Modiolopsis rhomboidea (Conrad). 



Modiolopsis ruda Billings. 



Modiolopsis subnasuta Hall. 



Monograptus clintonensis (Hall). (R.) 



Monograptus priodon chapmancnsis Ruedemann. 



(R.) 



Murchisonia aciculata Hall. 



Murchisonia arisaigensis Hall. 



Nuculites (Orthonota) carinalus Dawson. 



Orbiculoidea subplana (Hall). 



Orthoccras elegantulum Dawscn. 



Orthoceras exornatum Dawson. 



Orthoccras pictoensc Dawson. 



Orthoccras punctostriatum Hall. 



Orlhonota angulifcra McCoy. (S.) 



Orthonota incerta Billings. 



Orthonota simulans Billings. 



Orthonota speciosa Billings. 



Orthonota vcnusta Billings. 



Phacopidella downingix (Murehison). (R.) 



Pholidops ovalis Hall. (McA., S.) 



Ptcrinea emacerata (Hall). (A., M.) 



Pterinca Jioneymani (Hall). (A.) 



Pteronitella curta Billings. (S.) 



Pteronitella oblonga Billings. 



Pteronitella venusta Billings. (S.) 



EctiolUcs gdnitzianus venosus (Hall). (R.) 



Rliyndiospira(f) acadize (Hall). 



Eriynchospira(?) sinvata Hall. 



Schizotreta tenuilamellata (Hall). (R.) 



Schuchertella subplana (Hall). (S.) 



Serpulitcs longissimus Murehison. (M.) 



Spirifcr (Delthyris) crispus (Hisinger). (R.) 



Spirifcr (Delthyris?) rugicosta (Hall). (S.) 



Spirifer (Dclthyris) subsukatus (Hall). (M., S.) 



Slricklandinia billingsiana Dawson. 



Siropheodonta(?) gilpcni (Dawson). 



Tcntaculitcs canadensis Ami. 



NIAGAEAN OF ARCTIC AMERICA. 



Acervularia austini (Salter). 



Acidaspis perarmaia Whiteaves. 



Actinoccrai backi (Stokes). 



Aciinoccras kccwatinense Whiteaves. 



Actinoccras rotulatum (Billings). (Lake Terais- 



caming.) 



Actinodictyon canadcnsc Parks. 

 Actinodictyon keelei Parks. 



Actinodictyon lowi Parks. 



Actinodictyon neptuni Parks. 



A ctinostromafranklinense Parks. 



Actinostroma tcnuifilatum Parks. 



Actinostroma tcnuifilatum cylindricum Parks. 



Actinostroma tenuifilatum inflcctum Parks. 



Alvcolitcs arctica "Woodward. 



Alveolitcs undosus Miller. (Saskatchewan River). 



Ambonychia scptentrionalis Whiteaves. 



Ambonychia undulata (Whitfield). 



A mplexus fieldcni Etheridge. 



A mplexus phragmoccras (Salter). 



Aparchites billingsi (Jones). 



Aphyllostylus gradlis W r hiteaves. 



A try pa mansonii (Salter). 



Bellerophon nautarum Salter. 



Beyridda clathrata Jones. 



Beyrichia plagosa Jones. 



Boreaster loivi Lambe. 



Calapcecia borealis Whitfield. 



Camaroto?chia(?) coalescens Whiteaves. 



Camarotcechia ekwanensis Whiteaves. 



Caunopora Jiudsonica Dawson. 



Chonetes striatellus (Dalman). 



Clathrodictyon cystosum Parks. 



Clathrodictyon cystosum cylindricum Parks. 



Clathrodictyon cystosum lineatum Parks. 



Clathrodictyon drummondense Parks. 



Clathrodictyon striatellum (D'Orbigny). 



Clathrodictyon vesiculosum minutum (Rominger). 



Columnaria sutherlandi Salter. 



Conchidium arcticum Holtedahl. 



Conchidium bilocularc Linnaeus. 



Conchidium decussatum (Whiteaves). 



Cyathophyllum articulatum (Wahlenberg). 



Cyathophyllum pickthorni (Salter). 



Cyrtoceras cordatum Parks. 



Cyrtoceras(?) cuneatum Whiteaves. 



Diaphorostoma perforatum Whiteaves. 



Encrinurus Isevis (Angelin). 



Endoceras? ommaneyi Salter. 



Favistclla? franklini Salter. 



Favislella rcticulata Salter. 



Fencstella subarctica Whiteaves. 



Glassia variabilis Whiteaves. 



Goldius aquilonaris (Whiteaves). 



Goldius ekwanensis (Whiteaves). 



Goldius fl-abcllifcr (Goldfuss). 



Gypidula coppingeri (Etheridge). 



Gyronema brevispira Whiteaves. 



Gyroncma dowlingii ^liiteaves. 



Gyronema speciosum Whiteaves. 



Halysites agglomeratiformis Whitfield. 



Halysites catenularia ficldeni Etheridge. 



Halysites catenularia harti Etheridge. 



Halysites parry i (Konig). 



Helicotoma naresii Etheridge. 



Hcliolilcs mcgastoma (McCoy). 



Heliolitcs pcrchgans Whitfield. 



IHonia? parvula Whiteaves. 



fcnchiiina grandis latimarginata Jones (Saskatche- 



v, - an River). 



Leperditia arctica (Jones). 

 Lipcrditia cxca Jones (Saskatchewan River). 

 Lcpcrditia gibbcra Jones. 

 Leperditia hisingcri Schmidt. 

 Leperditia hisingeri cgena Jones (Saskatchewan 



River). 



