198 SYNOPSIS OF AMERICAN FOSSIL BKACIIIOPODA. [bull.87. 



Cyrtina(?) curupira Ixatlibuii. Middle Devonian. 



Cyitina(?) curupira, liatbbuu, lUill. IJufifalo Soc. Nat. Sci., I, 1874, p. 212, pi. 10, 



figs 1, G. 

 Loc. Erere, Province of Para, Brazil. 



Cyrtina curvilineata White. Hamilton (Dev.). 



Cyrtia curvilineata White, Proc. Boston Soc. Nat. Hist., IX, 1862, p. 2.5. 

 Cyrtina curvilineata? Hall, Pal. New York, IV, 1867, p. 270, pi. 41, figs. 53-55. 

 Cyrtina curvilineata Hall and Clarke, Ibidem, VIII, Pt. II, 1895, pi. 28, figs. 11, 12 

 Loc. Iowa City, Iowa. 



Oyitina daliuani Billings (non Hall)=C. affinis. 



Cyrtina dalmani (Hall). Lower Helderberg (Dev.). 



Cyrtia dalmani Hall, Tenth Rep. New York State Cab. Nat. Hist., 1857, p. 64;— 

 Pal. New York, III, 1859, p. 206, pi. 24, fig. 1. 



Cyrtina dalmani Meek and Worthen, Geol. Survey Illinois, III, 1868, p. 383, pi. 

 7, fig. 3. 



Loc. Albany and Schoharie counties, New York; Perry County, Missouri; Deca- 

 tur Couutj', Tennessee; Dalhousie, New Brunswick. 



Cyrtina davidsoni Walcott. Middle and Upper Devonian. 



Cyrtina davidsoni Walcott, Mon. U. S. Geol. Survey, VIII, 1884, p. 146, pi. 3, 



fig. 2. 

 Loc. White Pine district, Nevada. 



Cyrtina hamiltonensis Hall. Up. Helderberg, Ham., and Port. (Dev.). 



Cyrtia hamiltonensis Hall, Tenth Rep. New York State Cab. Nat. Hist., 1857, p. 

 166.— Billings, Canadian Jour., VI, 1861, p. 262, figs. 80-82;— C4eol. Canada, 

 1863, p. 384, fig. 415. 



Cyrtina hamiltonensis Hall, Pal. New York, IV, 1867, p. 268, pi. 27, figs. 1-4; 

 pi. 44, figs. 26-33, 38-52.— Meek, Trans. Chicago Acad. Sci., I, 1868, p. 99, 

 pi. 14, figs. 5, 7, 10.— Nicholson, Pal. Prov. Ontario, 1874, p. 83.— Walcott, 

 Mon. U. S. Geol. Survey, VIII, 1884, p. 147.— Nettelroth, Kentucky Fossil 

 Shells, Mem. Kentucky Geol. Survey, 1889, p. 96, pi. 13, figs. 4-12.— Whit- 

 eaves, Cont. to Canadian Pal., I, 1891, pp. 226, 288. — Hall and Clarke, Pal. 

 New York, VIII, Pt. II, 1895, pi. 28, figs. 23-33, 43, 45, 46, 53.— Kindle, 

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



Cyrtina panda Meek, Trans. Chicago Acad. Sci., I, 1868, p. 100, pi. 14, fig. 8. 



Loc. New York; Pennsylvania; Maryland; Cayuga and Thedford, Ontario ; Louis- 

 ville, Kentucky; Indeijendeuce, Iowa; Eureka district, Nevada; Mackenzie 

 and Athabasca rivers, and lakes Manitobaand Winnipegosis, British America. 



Ohs. C. panda is a variation of this species with a higher ventral area. 



Cyrtina hamiltonensis recta Hall. Hamilton and Chemung (Dev.). 



Cyrtina hamiltonensis var. recta Hall, Pal. New York, IV, 1867, i). 270, pi. 44, 

 figs. 34-37. — Nettelroth, Kentucky Fossil Shells, Mem. Kentucky Geol. Sur- 

 vey, 1889, p. 97, pi. 13, figs. 13-16.— Hall and Clarke, Pal. New York, VIII, 

 Pt. II, 1895, pi. 28, figs. 21, 22. 



Loc. Allegany County, New York; Falls of Ohio. 



Cyrtina lachrymosa Hall and Clarke. Waverly (L. Carb.). 



Cyrtina lachrymosa Hall and Clarke, Pal. New York, VIII, Pt. II, 1895, pp. 46, 



362, pi. 28, figs. 36, 37, 47. 

 Loc. Richfield, Ohio. 



Cyrtina missouriensis (Swallow), Hamilton (Dev.). 



Cyrtia missouriensis Swallow, Trans. St. Louis Acad. Sci., I, 1860, p. 647. 

 Cyrtina missouriensis Miller, N. American Geol. Pal., 1889, p. 343. 

 Lqc. Callaway County, Missouri. 

 Ob%. Regarded by Keyes as a synonym for C. umbonata. 



