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



ANOPLOTHECA Sandberger (emend Hall) — Continued. 



Obs, Hall ami Clarke hav^e sliowu that Auoplotheca aud Bilida are synonyraoiia 

 teruia and that Ccidospira is .also structurally identical. The latter name, 

 however, they retain as a subgenus, of Anoplotheca. While the brachydium 

 is not yet fully known in Leptocudia, all its other characters are the same 

 as those of C(Hlospira. Under these circumstances it appears best, for the 

 l)resent at least, to refer all American species of Leptoccnlla and Cddospira 

 to Anoplotheca. 

 Anoplotheca acutiplicata (Conrad). Corniferon.s (Dev.). 



Atrypa acutiplicata Conrad, Fifth Ann. Rep. N. Y. Geol. Survey, 1841, j). 54. — 

 Hall, Fifteenth Rep. N. Y. State Cab. Nat. Hist., 1862, pi. U, fig. 17. 



LeptoctPlia acutiplicata Hall, Pal. New York, IV, 18G7, p. 365, pi. 67, figs. 30-39. 



Cffilospira acutiplicata Hall and Clarke, Ibidem, VIII, Pt. II, 1893, p. 136, pi. 53, 

 figs. 32-39. 



Loc. Waterville, Cassville, I^ast Victor, etc.. New York. 



Anoplotheca Camilla (Hall). Oriskany aud Up. Helderberg (Dev.). 



Coelospira concava Hall (non Hall 1863), Pal. New York, IV, 1867, p. 329. 

 Coelospira Camilla Hall, Ibidem, 1867, pi. 52, figs. 13-19;— Twentieth Rep. N. Y. 



State Cab. Nat. Hist., 1867, p. 168.— Hall and Clarke, Pal. New York, VIII, 



Pt. II, 1893, p. 136, pi. 53, figs. 24-31. 

 Loc. Caledonia, New York; county of Haldimand, Ontario. 



Anoplotheca concava (Hall). Lower Helderbers: (Dev.). 



Leptocadia concava Hall, Tenth Rep. N. Y. State Cab. Nat. Hist., 1857, p. 107; — 

 Pal. New York, III, 1859, p. 245, pi. 38, figs. 1-7.— Billings. Canadian Jour., 

 VI, 1861, p. 352, fig. 127 ;— Geology Canada, 1863, p. 369, iig. 383 ; p. 957, fig. 451. 



Coelospira concava Hall, Sixteenth Rep. N. Y. State Cab. Nat. Hist., 1863, p. 60; — 

 Trans. Albany Institute, IV, 1863, p. 146. — Meek, American Jour. Sci., 2d 

 ser., XL, 1865, p. 33.— Hall and Clarke, Pal. New York, VIII, Pt. II, 1893, p. 

 134, figs. 122,123; pi. 53, figs. 20-23. 



Loc. Albany and Schoharie counties, New York ; Kennedy Channel, Arctic region. 



Anoplotheca dichotoma (Hall). Oriskany (Dev.). 



Leptocadia dichotoma Hall, Pal. New York, III, 1859, p. 452, pi. 103 B, figs. 3.— 



Hall and Clarke, Ibidem, VIII, Pt. II, 1893, p. 137. 

 Loc. Cumberland, Maryland. 

 Oft.s. Possibly the young of Anoplotheca flabellites. 



Anoplotheca fimhriata (Hall). Oriskany (Dev.). 



Leptocffilia fimbriata Hall, Twelfth Rep. N. Y. State Cab. Nat. Hist., 1859, p. 33, 

 fig. 3;_Pal. New York, III, 1859, p. 450, pi. 103B, fig. 2.— Hall and Clarke, 

 Ibidem, VIII, Pt. II, 1893, p. 137, pi. 53, figs. 47-52, 54, 55. 



Loc. Cumberland, Maryland. 



Anoplotheca flabellites (Conrad). Oriskany and Corniferous (Dev.). 



Atrypa flabellites Conrad, Fifth Ann. Rep. N. Y. Geol. Survey, 1841, p. 55. 



Atrypa palmata Morris and Sliarpe, Quart. Jour. Geol. See. London, II, 1846, 

 p. 276, pi. 10, fig. 5. 



Orthis palmata Sharpe and Salter, Trans. Geol. Soc. London, 2d ser., VII, 1856, 

 p. 207, pi. 26, figs. 7-10. 



Leptocadia propria Hall, Tenth Rep. N. Y. State Cab. Nat. Hist., 1857, p. 108. 



Leptocn-dia flabellites Hall, TM'elfth Rep. Ibidem, 1859, p. 33, figs. 1, 2, 4;— Pal. 

 New York, III, 1859, p. 449, pi. 103B, fig. 1; pi. 106, fig. 1.— Billings, Cana- 

 dian Jour., VI, 1861, p. 351, fig. 126;— Geology Canada, 1863, p. 369, fig. 

 382.— Meek and Worthen, Geol. Survey Illinois, III, 1868, p. 397, pi. 8, fig. 

 3.— Billings, Pal. Fossils, II, 1874, p. 42, pi. 3, figs. 5, 6.— Steiumann, American 

 Naturalist, XXV, 1891, p. 856.— A. Ulrich, N. Jahrb. f. Mineral., Beilageband, 



