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



Scenidium pyramidale Hall — Continued. 



Sceuiilium pynimidalo Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, p. 242, 



pi. 7, li«-8. 29, 30; pi. 7A, ligs. 40-42. 

 Loc. Lockport, New York; Arisaig, Nova Scotia (Ami). 



SCHIZAMBON Walcott. Genotype S. typicalis Walcott. 



Schizambou Walcott, Mon. U. S. Geol. Survey, VIII, 1884, p. 69.— Hall and 

 Clarke, Pal. New York, VIII, Pt. I, 1892, ])p. 113, 1(57.— Winchell and Schu- 

 chert, Minnesota Ceol. Survey, III, 1893, p. 3G0. — Hall and Clarke, Eleventli 

 Ann. Eep. N. Y. State Geologist, 1894, p. 253. 



Scliiz; iibonia CEhlert, Fischer's Manuel de Concbyliologie, 1887, p. 1266. 



Schizambon (?) dodgei Winchell and Schuchert. Trenton (Ord.). 



Schizambou (?) dodgii W. and S., Minnesota Geol. Survey, III, 1893, p. 361, 



pi. 30, figs. 5-7. 

 Loc. Sandyhill, New York. 



Schizambon (?) fissus canadaensis (Ami). Utica (Ord.). 



Sipbouotreta scotica Wbiteaves, American Jour. Sci., 3d ser., XXIV, 1882, p. 



278 ;— Canadian Nat. Geol., X, 1883, p. 396. 

 Sipbouotreta scotica var. canadensis Ami, Ottawa Naturalist, I, 1887, p. 124. 

 Schizambon (?) fissus var. canadensis Hall and Clarke, Pal. New York, VIII, 



Pt. I, 1892, p. 115, pi. 4, figs. 32-36. 

 Lot: Gloucester, Ontario. 



Schizambon (?) lockei Winchell and Schuchert. Lorraine (Ord.). 



Schizambon (?) lockii Winchell and Schuchert, Minnesota Geol, Survey, III, 



1893, p. 362, pi. 30, figs. 8-10. 

 Loc. Cincinnati, Ohio. 



Schizambon typicalis Walcott. Pogonip or Calciferous (Ord.). 



Schizambon typicalis Walcott, Mon. U. S. Geol. Survey, VIII, 1884, p. 70, pi. 1, 



fig. 3.— Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, p. 114, fig. 65, 



pi. 4, figs. 27-30. 

 Loc. Eureka district, Nevada; Manitou, Colorado. 



SCHIZOBOLUS Ulrich. 



Genotype Discina truncata Hall=Lingu]a concentrica Vanuxem. 



Schizobolus Ulrich, Cont. American Pal., I, 1886, p. 25, pi. 3, fig. 3. — Hall and 

 Clarke, Pal. New York, VIII, Pt. I, 1892, pp. 87, 165;— Eleventh Ann. Rep. 

 N. Y State Geologist, 1894, p. 246. 



Schizobolus concentricus (Vanuxem). Genesee (Dev.). 



Lingula concentrica Vanuxem, Geol. N. Y. ; Rep. Third Dist., 1842, j). 168, fig. 4. — 



Hall, Geol. N. Y. ; Rep. Fourth Dist., 1843, p. 223, fig. 4. 

 Discina truncata Hall, Sixteenth Rep. N. Y. State Cab. Nat. Hist., 1863, p. 28; — 



Pal. New York, IV, 1867, p. 23, pi. 1, fig. 15 ; pi. 2, figs. 36, 37. 

 Discina (Trematis) truncata Hall and Whitfield, Twenty-fourth Rep. N. Y. State 



Cab. Nat. Hist., 1872, p. 187. 

 Trematis truncata Hall, Twenty-third Rep. Ibidem, 1873, pi. 13, fig. 20, 

 Schizobolus truncatus Ulrich, Cont. American Pal., 1, 1886, p. 25, pi. 3, fig. 3. — 



Hall and Clarke, Pal. New York, VIII, Pt. 1, 1892, p. 87, pi. 3. figs. 11-14. 

 Loc. Ogdens Ferry, Cayuga Lake, etc., New York; Falls of Ohio; Madison 



County, Kentucky. 



SCHIZOCRANIA Hall and Whitfield. Genotype Orbicula ? filosa Hall. 



Schizocrania Hall and Whitfield, Pal. Ohio, II, 1875, p. 71.— Hall and Clarke, Pal. 



New Y'ork, VIII, Pt. 1, 1892, pp. 142, 168.— Winchell and Schuchert, Minnesota 



Geol. Survey, III, 1893, p. 369.— Hall and Clarke, Eleventh Anij. Rep. N. Y, 



State Geologist, 1894, p. 259. 



