1452 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Euconia amphitrite (Billings). 

 Gcisonoccras shumardi (Billings). 

 Hdicotoma perstriata Billings. 

 Illxnus bayfteldi Billings. 

 Illxnus conifrons (Billings). 

 Leptxna incrassata Hall. 

 Loplwspira aspcra (Billings). 

 Loxoccras diffidens (Billings). 

 Maclurites atlanticus (Billings). 

 Modiolopsis parviuscula Billings. 

 OrtMs(?) piger Billings. 

 Orthoccras cornuum Billings. 

 Orthoccras minganense Billings. 

 Palxocystites pulchcr Billings. 

 Plcctoceras jason (Billings). 

 Plectoceras tyrans (Billings). 

 Plcurotomaria abrupta Billings. 

 Pliomerops canadensis (Billings). 

 Schizambon duplicimuratus Hudson. 



Thalcops clavifrons (Billings). 



Tlwleops vindex (Billings). 

 Zittelclla varians (Billings). 



CHAZYAN (QUEBEC) OF NEWFOUNDLAND. 



(Divisions I-M and N-P. in part; I may be in part 

 Canadian.) 



Actinoceras clouei (Barrande). 



Agnostus fabius Billings. (N., P.) 



Amphilichasjukesi (Billings). (P.) 



Ampyx (Lonchodomas) Ixviusculus (Billings). (N.) 



Ampyx (Lonchodomas) normalis (Billings). (N., P.) 



Ampyx (Lonchodomas) rutilius (Billings). (P.) 



Ampyx (Lonchodomas) semicostatus (Billings). (N., 



P-) 



Archinacclla instabilis (Billings). (L.) 

 Arthrorachis galba (Billings). (M., N., P.) 

 Asaphus(?) quadraticaudatus Billings. (N., P.) 

 Basilicus huttoni (Billings). (N., P.) 

 Bathyurellus formosus Billings. (P.) 

 Bathyurellus fraternus Billings. (P.) 

 Bathyurellus nitidus Billings. (P.) 

 Bathyurellus validus Billings. (L.) 

 Bathyurus perplexus Billings. 

 Bathyurus vetulus Billings. 

 Beyrichia atlantica Billings. (L., M.) 

 Calathium fittoni Billings. (K.) 

 Camarclla parva Billings. (N., P.) 

 Camarclla varians Billings. (N., P.) 

 Ceraurinus polydorus (Billings). (N.) 

 Ctenodonta angcla Billings. (SI.) 

 Cybeloides minis (Billings). (N., P.) 

 Eccyliomphalus distans (Billings). (P.) 

 Eccyliomphalus superbus (Billings). (P.) 

 Endoccras atlanticus (Barrande). 

 Endoceras insulare (Barrande). 

 Fusispira daphne (Billings). (L.) 

 Ilarpides atlanticus Billings. (P.) 

 Harpidcs concentricus Billings. (P.) 

 Helicotoma eucharis Billings. (L., M.) 

 Heliomera sol (Billings). (N., P.) 

 Holopea ophelia Billings. (L.) 

 Hormotoma simulatrix (Billings). (H., N.) 

 Illxnus arcuatus Billings. (P.) 

 Illxnus consimilis Billings. (L., M., N.) 

 Illxnus consobrinus Billings. (P.) 

 Illxnus fraternus Billings. (L., N., P.) 

 Illxnus tumidifrons Billings. (P.) 



Leiostegium breviceps (Billings). (N.) 



Leperditia concinnula Billings. (L., M.) 



Leperditia ventralis Billings. (N.) 



Lingula nympha Billings. (N.) 



Lingulella iole (Billings). (P.) 



Litocerasf insolens (Billings). (L.) 



Liluites?? plulo Billings. (L.) 



Lophospira augustina (Billings). (H., N.) 



Lophospira cicelia (Billings). (L.) 



Lophospira sororcula (Billings). (H., M.) 



Loxoceras allumettense (Billings). (M., N.) 



Maclurites crenulatus (Billings). (I., N.) 



Maclurites emmonsi (Billings). (I., N.) 



Maclurites ponderosus (Billings) . ( P. ) 



Maclurites transitionis (Billings). (K., L.) 



MurcMsonia?? catharina Billings. (K.) 



Nautilus? deserlus Billings. (L.) 



Nieszkowskia perforator (Billings). (N.) 



Nileus macrops Billings (N.) 



Nileus scrutator Billings. (N., P.) 



Obolus cyane (Billings). (P.) 



Orthis? delicatula Billings. (N., P.) 



Orthoccras flavins Billings. (I.) 



Orthoccras hxsitans Billings. (I.) 



Orthoccras piscator Billings. (I., N.) 



Orthoccras priamus Billings. (L., SI.) 



Pleurotomaria (Eotomaria) selecta Billings. (H., I., 



K.,L.) 

 Pleurotomaria sponsa Billings. (N., P.) 

 Pleurotomaria virgo Billings. (H., I., K., L.) 

 Pleurotomaria virguncula Billings. (H.,L, K., L.) 

 Pliomerops barrandci (Billings). (I., K.,N., P.) 

 Pliomerops Julius (Billings). (P.) 

 Pseudosphxrexochus mcrcurius (Billings). (P.) 

 Pseudosphxrexochus vukanus (Billings). (P.) 

 Eafinesquina aurora (Billings). (K., N., P.) 

 Remopleurides pandcri Billings. (N.) 

 Remopleurides schlotheimi Billings. (N., P.) 

 Ehynchonella(f) corinthia Billings. (N.) 

 Solenopora compacta (Billings). (L.) 

 Strophomcna(?) imbecilis Billings. (P.) 

 Telephus americanus Billings. (N., P.) 

 Triarlhrus fischcri Billings. (N.,P.) 

 Tripteroceras servile (Billings). (L.) 

 Urasterella huxleyi (Billings). (I.) 



BLACK RIVER OF APPALACHIAN AND MISSISSIPPI 

 VALLEYS AND CANADA. 



(L.= Lowville; W.= Watertown; D.= Decorah; P.= 

 Plattevillc; A. = Auburn; K.= Kimmswick; Le.= 

 Leray; H.= Harding.) 



Actinoceras beloitense (Whitfield) (P.) 

 Actinoceras bigsbyi Bronn. (P., D., L.) 

 Actinoceras gracile (Hall). (W.) 

 Actinoceras remoliseptum (Hall). (P., SV.) 

 Actinoceras tcnuifilum (Hall). (W., L.) 

 Actinoceras tcnuifilum distans (Hall). (W.) 

 Actinostromaf trentonense Ulrieh and Everett. (P.) 

 Ainbonychia planistriata Hall. (P.) 

 Anolotichia impolita (Ulrieh). (D.) 

 Anthaspidella firma Ulrieh and Everett. (P.) 

 Anthaspidella florifcra Ulrieh and Everett. (P.) 

 Anthaspidella grandis Ulrieh and Everett. (P.) 

 Anthaspidella? magnifica Ulrieh and Everett. (P.) 

 Anthaspidella mammulata Ulrieh and Everett. (P.) 

 Anthaspidella obliqua Ulrieh and Everett. (P.) 

 Anthaspidella parvistellata Ulrieh and Everett. (P.) 



