SCHUCHEET.] 



INDEX AND BIBLIOGRAPHY. 303 



Pentamerella C?) compressa Eiugueberg— Continued. 

 Log. Lockport, New York. 



Ohs. May be a pathologic or compressed specimen of Spirifer crispiis or S. sul- 

 catas. 

 Pentamerella dubia Hall. ? Hamilton (Dev.). 



Atrypa (u. sp. ?) Owen, Geol. Survey Wisconsin, Iowa, Minnesota, 1852, pi. 3A, 



fig. 1. [See specimen in U. S. Nat. Mns., Cat., Invert. Foss., 17927.] 

 Spirifer dubius Hall, Thirteenth Rep. N. Y. State Cab. Nat. Hist., 1860, p. 90. 

 Pentamerella dubia Hall, Pal. New York, IV, 1867, p. 379, pi. 58, tigs. 38-43.— 



Hall and Clarke, Ibidem, VIII, Pt. II, 1893, p. 245, pi. 71, tigs. 32-38. 

 Loc. Iowa City, Iowa. 

 Ohs. See Pentamerella micula Hall. 



Pentamerella intralineata (A. Wincliell). Hamilton (Dev.). 



Pentamerus intralineatus A. Wiuchell, Geol. Rep. Lower Peninsula of Michi- 

 gan, 1866, p. 94. 

 Loc. Grand Traverse region, Michigan. 



Pentamerella micula Hall. ? Hamilton (Dev.). 



Pentamerella micula Hall, Pal. New York, IV, 1867, p. 378, pi. 58, figs. 26, 27.— 



Hall and Clarke, Ibidem, VIII, Pt. II, 1893, p. 245. 

 Loc. Iowa City, Iowa. 

 Ohs. Compare with Pentamerella dubia Hall. 



Pentamerella obsolescens Hall. ? Hamilton (Dev.). 



Pentamerella obsolescens Hall, Pal. New York, IV, 1867, p. 379, pi. 58, figs. 24, 



25.— Hall and Clarke, Ibidem, VIII, Pt. II, 1893, p. 245. 

 Loc. Waterloo, Iowa. 



Pentamerella pavilionensis Hall. Hamilton (Dev.). 



Pentamerus papilionensis Hall, Thirteenth Rep. N. Y. State Cab. Nat. Hist., 



1860, p. 86. 

 Pentamerella papilionensis Hall, Pal. New York, IV, 1867, p. 377, pi. 58, figs. 28- 



37. — Nettelroth, Kentucky Fossil Shells, Mem. Kentucky Geol. Survey, 1889, 



p. 50. 

 Pentamerella pavilionensis Hall and Clarke, Pal. New York, VIII, Pt. II, 1893, 



p. 245, pi. 71, figs. 30, 31. 

 Loc. Seneca and Canandaigua lakes, etc., New York; Falls of Ohio. 



Pentamerella thusnelda Nettelrotli. Corniferous (Dev.). 



Pentamerella thusuelda Nettelroth, Kentucky Fossil Shells, Mem. Kentucky 



Geol. Survey, 1889, p. 51, pi. 31, figs. 26-28. 

 Loc. Near Louisville, Kentucky. 



Pentamerella ventricosa Hall=Clorinda ventricosa. 



PENTAMERUS Sowerby. Genotype P. laevis Sowerby. 



Pentamerus Sowerby, Mineral Conchology, I, 1813, j). 76. — Hall and Clarke, Pal. 

 New York, VIII, Pt. II, 1895, p. 236 ;— Thirteenth Ann. Rep. N. Y. Stato- 

 Geologist, 1895, p. 844. 



Pentamerus arcuosus McChesney=01orinda arcuosa. 

 Pentamerus aratus= Pentamerella arata. 

 Pentamerus barrandi Billings=Clorinda barrandei. 

 Pentamerus beaumonti Castelnau=P. oblongus. 

 Pentamerus bisinuatus McOhesney=P. oblongus. 

 Pentamerus borealis Meek = Pentamerella borealis. 

 Pentamerus brevirostris Hall=Auastropliia brevirostris. 



