188 SYNOPSIS OF AMERICAN FOSSIL BRACHIOPODA. [bull. 87. 



Conchidium unguiforme (Ulricli). Niagara (Sil.). 



G.vi)i(li;i uiigiiiloruii.s Ulricli, ("outrib. Americiin Pal., 1X86, p. 28, pi. 8, fig. 2. 

 Gypiduhi iiuguiforniis Miller, N. Aiuericiiu Gool. Pal., 1889, p. 84(5. 

 Couchidium ungiiifoiiiiis Hall and Clarke, Pal. New York, \Ul, Pt. 11, 1893, p. 



235, pi. GO, ligs. 1-4. 

 Loc. Louisville, KcMitncky. 



CONOTRETA Walcott. Genotype C. nisti Walcott. 



Conotreta Walcott, Proc. U. S. Nat. Mus., XII, 18!)0, p. 365 (extract 1889).— 

 Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, pp. 104, 167 ;— Eleventh 

 Aun. Rep. New Y'ork State (Jeologist, 1894, p. 250. 



Conotreta rusti Walcott Trenton (Ord.). 



Conotreta rusti ^Valeott, Proc. U. S. Nat. Mas., XII, 1890, p. 365, ligs. 1-4 (extract 

 1889).— Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, p. 104, pi. 4K, 

 figs. 16-21. 



Loc. Trenton Falls, New York; Covington, Kentucky. 



Couradia Hall and Clarke (non Adams) =Dinobolus. 



CRANiBNA Hall and Clarke. Genotype Terebratula romingeri Hall. 

 Cranaena Hall and Clarke, Pal. New York, VIII, Pt. II, 1893, p. 297 ;— Thirteenth 

 Ann. Rep. New York State Geologist, 1895, p. 865. 



Cranaena iowensis (Calvin). Middle Devonian. 



Terebratula (Cryptonella) iowensis Calvin, Bull. Lab. Nat. Hist. Univ. Iowa, 



I, 1890, p. 174, pi 3, tig. 4. 

 Crauiena iowensis Hall and Clarke, Pal. New York, VIII, Pt. II, 1893, p. 297, pi. 



80, ligs. 36-39; pi. 83, tig. 40. 

 Loc. Fayette, Iowa; Fulton, Missouri. 



Cranaena romingeri Hall. Hamilton (Dev.). 



Terebratula romingeri Hall, Sixteenth Rep. New York State Cab. Nat. Hist., 

 1863, p. 48, figs. 22, 23;— Pal. New York, IV, 1867, p. 389, pi. 60, figs. 17-25, 

 66, 67. — Nettelroth, Kentucky Fossil Shells, Mem. Kentucky Geol. Survey, 

 1889, p. 155, pi. 16, figs. 20-22. 



Crana-na romingeri Hall and Clarke, Pal. New York, VIII, Pt. II, 1893, p. 297, 

 fig. 215; pi. 80, figs. 13-19. 



Loc. Thunder Bay, Michigan; Waterloo, Iowa; Y'ork and Hamburg, NewY'^ork; 

 Clarke County, Indiana. 



CRANIA lletzius. Genotype Anoinia craniolaris Linn(?. 



Crania Retzius, Schrift. Ges. Natnrf. Freunde, Berlin, II, 1781, p. 72. — Dall, Bull. 

 Mus. Comp. Zool., Ill, 1871, p. 27;— Bull. U. S. Nat. Mus., 8, 1877, p. 21.— 

 Nettelroth, Kentucky Fossil Shells, Mem. Kentucky Geol. Survey, 1889, p. 

 31.— Hall and Clarke, Pal. New York, VIII, Pt. 1, 1892, pp. 145, 169.— Winchell 

 and Scluichert, Minnesota Geol. Survey, III, 1893, p. .372. — Hall and Clarke, 

 Eleventh Aun. Rep. New York State Geologist, 1894, p. 260. 



Crania acadiensis Hall. Arisaig (Sil.). 



Crania acadiensis Hall, Canadian Nat. Geol., V, 1860, p. 144, fig 1. — Dawson, 



Acadian Geol., 3d ed., 1878, p. 595, lig. 198. 

 Loc. East River, Nova Scotia. 



Crania agaricina Hall and Clarke. Lower Helderberg (Dev.). 



Crania agaricina Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, p. 180, pi. 



4H, fig. 2. 

 Lmc. Albany County, New York; Decatur County, Tennessee. 



Crania albersi ^Miller and Faber. Utica (Ord.). 



Crania albersi Miller and F'aber, .lour. Cincinnati Soc. Nat. Hist., XN'Il, 1894, 



p. 154, ])1. 8, figs. 17-19. 

 Loc. Cincinnati, Ohio. 



