192 SYNOPSIS OF AMERICAN FOSSIL BKACHIOPODA. [bull. 87. 



Crania scabiosa Hall — Continued. 



C. scabiosa has been found growing on Kafineaqnina, Strophoniena, Rhyn- 

 chonella, Pleurotomaria, and Monticulipora. In nearly all cases this species 

 partakes more or less of the ornamentation of its host. The variation pointed 

 out by authors is accidental and has no specilic value. 



Crania setifera Hall. Niagara (Sil.). 



Crania setifera Hall, Trans. Albany Institute, IV, 1863, p. 209 (non Hall, 1866) ;— 



Twenty-eighth Rep. New York State Mus. Nat. Hist., Doc. ed., 1876, pi. 21, figs. 



8-10;— Ibidem, 1879, p. 148, pi. 21, figs. 8-10;— Eleventh Rep. State Geol. 



Indiana, 1882, p. 283, pi. 21, figs. 8-10.— Hall and Clarke, Pal. New Y'ork, 



YIII, Pt. I, 1892, pi. 4H, fig. 18. 

 Loc. Waldron, Indiana. 



Crania setigera Hall. Trenton and Lorraine (Ord.). 



Crania setigera Hall, Descriptions n. sp. Crinoidea and other Fossils, 1866, p. 



12;— Twenty-fourth Rep. New York State Cab. Nat. Hist., 1872, p. 220, pi. 7, 



fig. 15.— Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, pi. 4H, figs. 



14-16.— Winchell and Schuchert, Minnesota Geol. Survey, III, 1893, p. 372, 



pi. 29, figs. 32, 33. 

 Loc. Mineral Point and Beloit, Wisconsin; Decorah,.Iowa; Minneapolis, Cannon 



Falls, etc., Minnesota; Wilmington, Illinois. 



Crania sheldoni White. Hamilton (Dev.). 



Crania sheldoni White, Proc. Boston Soc. Nat. Hist., IX, 1862, p. 29. 



Crania bordeni Hall and Whitfield, Twenty-fourth Rep. New Y'ork State Cab. 

 Nat. Hist., 1872, p. 187;— Twenty-seventh Rep. Ibidem, 1875, pi. 9, figs. 36, 

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

 p. 32, pi. 2, fig. 14.— Hall and Clarke, Pal. New York, VIII, Pt. 1, 1892, pI.4H, 

 figs. 4, 5. 



Loc. New Buft'alo and Iowa City, Iowa; Falls of Ohio. 



Obs, This species may not be distinct from C. crenistria. 



Crania siluriana Hall. Niagara (Sil.). 



Crania siluriana Hall, Trans. Albany Institute, IV, 1863, p. 208;— Twenty-eighth 

 Rep. New York State Mus. Nat. Hist., 1879, p. 148, pi. 21, figs. 3-7 ;— Eleventh 

 Rep. State Geol. Indiana, 1882, p. 282, pi. 21, figs. 3-7.— Beecher and Clarke, 

 Mem. New York State Mus., I, 1889, p. 13, pi. 1, figs. 1, 2. 



Loc. Waldron, Indiana. 



Crania socialis Ulrich. Utica (Ord.). 



Crania socialis Ulrich, Jour. Cincinnati Soc. Nat. Hist., I, 1878, p. 98, pi. 4, fig. 



14.— Hall and Clarke, Pal. New Y'ork, VIII, Pt. I, 1892, pi. 4H, fig. 29. 

 Loc. Cincinnati, Ohio. 



Crania spinigera Hall. Niagara (Sil.). 



Crania spinigera Hall, Descriptions u. sp. Foss. Waldron, Indiana, 1879, p. 13; — 

 Eleventh Rep. State Geol. Indiana, 1882, p. 283, pi. 27, fig. 1;— Trans. Albany 

 Institute, X, 1883, p. 69.— Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, 

 pi. 4H, fig. 17. 



Loc. Waldron, Indiana. 



Crania trentonensis Hall. Trenton (Ord.). 



Crania trentonensis Hall, Descriptions n. sp. Crinoidea and other Fossils, 1866, 

 p. 12;— Twenty-fourth Rep. New Y'ork State Cab. Nat. Hist., 1872, p. 219, 

 pi. 7, figs. 11, 12.— Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, pI.4H, 

 figs. 21, 22. — Winchell and Schuchert, Minnesota Geol. Survey, III, 1893, p. 

 374, pi. 29, figs. 36, 37. 

 Loc. Middleville, New York; Cannon Falls, Minnesota; Janesville, Wisconsin; 

 Dixon, Illinois. 



