scHrrHERT.l INDEX AND BIBLIOGRAPHY. 185 



Clorinda ventricosa (Ilnll). Niapiia (Sil.). 



reutanionis voutrii-osii Hull, (Jcol. Siuvoy NN'iHcon.siii ; U'cji. I'logicss, 1860, ]>. 2. — 



WhitCield, Gool. Wisconsin, IV, 1882, p. 291, pi. 17, ligs. 11-13.— Xettelrotb, 



Kentucky Fossil Shells, Mem. Kentucky Survey, 188i), p. 64, pi. 315, figs. 12-14. 

 Pentanierus cbicugoensis Winchell .and Marcy, Mem. Boston Soc. Nat. Hist., I, 



186"), p. 94, pi. 2, lig. 11.— Hall, Twentieth Rep. New York State Cab. Nat. 



Hist., 1868, p. 392. 

 Peutamerus (Pentamerellaf ) ventricosa Hall, Twentieth Rep. New York State 



Cab. Nat. Hist., 186S, p. 374, pi. 13, figs. 18-21. 

 Pentamerns (Pentamerella) ventricosus Hall and Wbitlield, Pal. Ohio, II, 1875, 



p. 138, pi. 7, ligs. 7, 8. 

 Barrandella ventricosa Hall and Clarke, Pal. New York, VIII, Pt. II, 1893, p. 



243, pi. 71, ligs. 4-10; pi. 84, fig. 46. 

 Loc. Waukesha, Wisconsin ; Bridgeport, Illinois; Louisville, Kentucky; Ohio. 



Co'lospira Hall=Aiioi)lotlieca. 



Ccelospira concava Hall 1807 (not 1863)=Anoplotlieca Camilla. 



Coelospira disparilis Hall = Atrypina disparilis. 



CONCHIDIUM Liniie. Genotype C. biloculare Linn6. 



Conchidium Liuno, Museum Tessinianum, 1753, ]>. 90 ; — Systema Natura-, ed. xi, II, 



1760, p. 163.— (Eblert, Fischer's Manuel de Concbyliologie, 1887, }>. 1311.— Hall 



and Clarke, Pal. New York, VIII, Pt. II, 1893, p. 231 ;— Thirteenth Ann. Rep. 



New York State Geologist, 1895, p. 842. 

 Heluiintbolitus Linn<?, Systema Natnra', ed. xii, IV, 1766, p. 163. 

 Pentamerus Sowerby (uon Pentamera Dumeril, 1806), Mineral Concbology, I, 



1813, p. 73. 

 Gypidia Dalman, Kongl. Svenska Vet.-Akad. Handl., for 1827, 1828, pp. 93, 100. 

 Peutamerus Billings, Canadian Jour., VI, 1861, p. 269. — Hall, Twentieth Rep. 



New York State Cab. Nat. Hist*., 1867, p. 163;— Pal. New York, IV, 1867, pp. 



369, 373. — Nettelroth, Kentucky Fossil Shells, Mem. Kentucky Geol. Survey, 



1889, p. 52, 

 Autirhynchonella Quenstedt, Petrel". Deutschlands, Brach., 1871, p. 231. 

 Zdimir Barrande, Systtme Silurieu Bohtme, VI, 1881, p. 171. 



Conchidium biloculare Liiiiie. Silurian. 



Conchidium biloculare Linn^, Systema Natural, ed. xi, II, 1760, p. 163. — Hall 



and Clarke, Pal. New York, VIII, Pt. II, 1893, p. 233, pi. 6, figs. 11-14. 

 Pentamerus conchidium p]mmerson, Geol. Frobischer Bay ; Nourses Narr. Hall's 



Arctic Exped., 1879, p. 578. 

 Loc. Europe; Rescue Harbor, Arctic America. 



Conchidium colletti (Miller). Waterlime (Sil.). 



Petamerus colletti Miller, Seventeenth Rep. State Geol. Indiana, 1891, p. 77, pi. 



13, figs. 5, 6. 

 Conchidium colletti Hall and Clarke, Pal. New York, VIII, Pt. II, 1893, p. 235, 



pi. 66, figs. 16, 17. 

 Loc. Kokomo, Indiana. 

 Ohs. Compare with ('. laqueatum Conrad. 



Conchidium crassiplica Hall and Clarke. Niagara (Sil.). 



Conchidium crassiplica Hall and Clarke, Pal. New York, VIII, Pt. II, 1895, pp. 



235, 369, pi. (i6, figs. 24, 25. 

 Loc. ?Near Louisville, Kentucky. 



Conchidium crassiradiatum (McObesney). Niagara (Sil.). 



Pentamerus crassoradius McChesney, Descriptions New I'al. Foss., 1861, ]). 87. 

 Loc. Milwaukee, Wisconsin. 



