SCHUCHEKT. 



INDEX AND BIBLIOGRAPHY. 419 



Strophalosia spondyliformis (White aud St. John) — Continued. 



Strophiilosia spoiulyliforniis Heecher, Americun Jour. .Sci., H<1 eer., XL, 1890, 

 p. 242.— Hall aud Clarke, Pal. New York, VIII, Pt. I, 1892, pi. 17A, figs. 

 25, 26. 



Loc. Appanoose and Pottawattamie counties, Iowa. 



Strophalosia truncata (Hall). Hamilton, Portage, aud Ithaca (Dev.). 



Stropliomena pustulosa Hall (non Productn.s pustulosus Phillips), Geol. N. Y. ; 



Kep. Fourth Dist., 1843, p. 189, fig. 4. 

 Productus truncatus Hall, Tenth Pop. N, Y. State Call. Nat. Hist., 1857, p. 171. 

 Productella truncata Hall, Pal. New York, IV, 1867, p. 160, pi. L'3, ligs. 12-24;— 



Second Ann. Rep. N. Y. State Geol., 1883, pi. 48, ligs. 10-15.— Kindle, Bull. 



American Pal., 6, 1896, p. 35. 

 Productus (P.) truncatus Walcott, Mon. U. S. Cool. Survey, VIII, 1884, p. 131, 



pi. 14, fig. 2. 

 Productella (Strophalosia?) truncata Whiteavcs, Cont. Canadian Pal., I, 1889, 



p. 112, pi. 16, ligs. 1,2. 

 Strophalosia truncata Beecher, American Jour. Sci., 3d ser., XL, 1890, p. 247^ — 



Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, p. 316, pi. 15B,fig8. 24-26; 



pi. 17, tigs. 10-15. 

 Loc. New York; Thedford, Ontario; Eureka district, Nevada. 



STROPHEODONTA Hall. Genotype Strophomena demissa Conrad. 



Stropheodonta Hall, Pal. New York, II, 1852, p. 63.— Hall and Clarke, Pal. New 



York, ^'III, Pt. I, 1892, p. 284. 

 Strophodonta Hall, Geol. Survey Iowa, I, 1858, p. 491. — Billings, Canadian Jour. 



Sci. Arts, u. ser., VI, 1861, p. 332;— Proc. Portland Soc. Nat. Hist., 1863, p. 



108.— Hall, Pal. New York, IV, 1867, p. 78.— Nettelroth, Kentucky Fossil 



Shells, Mem. Kentucky Geol. Survey, 1889, p. 142. 

 Brachyprion Shaler, Bull. Mus. Comp. Zool., 4, 1865, p. 63. 

 Brachyprion and Douvilina Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, 



pp. 220, 286, 288, 289, 292; Eleventh Ann. Rep. N. Y. State Geologist, 1894, 



pp. 280, 281. 



Stropheodonta acanthoptera (Wliiteaves). Upper Silurian. 



Strophomena acanthoptera Whiteaves, Canadian Rec. Sci., 1891, p. 294, pi. 3, 



figs. 1, 2. 

 Loc. District of Saskatchewan and Lake Winnipegosis, Canada. 



Stropheodonta alveata Hall. Upper Helderberg (Dev.). 



Strophodonta alveata Hall, Sixteenth Rep. N. Y. State Cab. Nat. Hist., 1863, p. 



36;— Pal. New York, IV, 1867, p. 81, pi. 11, figs. 1-3. 

 Loc. Albany County, New York. 



Stropheodonta arcuata Hall. Chemung (Dev.). 



Strophodonta arcuata Hall, Geol. Survey Iowa, I, 18.58, p. 492, pi. 3, figs, la-lc, 



2a-2r.— Calvin, Bull. U. S. Geol. Survey, IV, 1878, p. 728.— Whiteaves, Cont. 



Canadian Pal., I, 1892, p. 285. 

 Strophodonta arcuata? Walcott, Mon. U. S. Geol. Survey, VIII, 1884, p. 121. 

 Stropheodonta arcuata Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, p. 289, 



pi. 15B, figs. 1-3. 

 Loc. Rockford, Iowa; Naples, New York; Eureka district, Nevada; Lake Win- 



nipegosis, Canada. 



Stropheodonta beckei Hall. Lower Helderberg (Dev.). 



strophodonta beckii Hall, Pal. New York, III, 1859, p. 191, pi. 22, figs. la-It.— 



Meek, American Jour. Sci., 2d ser., XL, 1865, p. 33. — Hall, Second Ann. Rep. 



N. Y. State Geol., 1883, pi. 44, figs. 23, 24. 

 Strophomena (Strophodonta) beckii Hall, Tenth Rep. N. Y. State Cab. Nat. 



Hist., 1857, p. 52, figs. 1-4. 



