BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 1263 



Tetracystis chrysalis Schuchert. 



Tetracystis chrysalis Schuchert, Smiths. Misc. Coll., 47, pt. 2, 1904, p. 218, fig. 



25, pi. 34, figs. 9, 10; pi. 40, figs. 1-3; Maryland Geol. Surv., Low. Dev., 1913, 



p. 232, pi. 32, figs. 10, 11. 

 Helderbergian (Keyser): Keyser, West Virginia. 

 Holotype.— Cat. No. 35063, U.S.N. M. 



Tetracystis fenestratus Schuchert. 



Echinoencrinites fenestratus Troost, Amer. Jour. Sci., 8, 1849, p. 419; Proc. Amer. 



Assoc. Adv. Sci., 2, 1850, p. 60. (Not defined.) 

 Echinocrinus fenestratus Yandell, Proc. Amer. Assoc. Adv. Sci., 5, 1851, p. 230. 

 Echinocrinites fenestratus Roemer, Sil. Fauna d. West Tennessee, Breslau, 1860, 



p. 34. 

 Tetracystis fenestratus Schuchert, Smiths. Misc. Coll., 47, 1904, p. 219, pi. 34, 



figs. 6-8.— Wood, Bull. IT. S. Nat. Mus., 64, 1909, p. 8. 

 Niagaran (Brownsport): Decatur County, Tennessee. 

 Holotype.— Cut. No. 35091, U.S.N.M. 



TETRADELLA Ulrich. Genotypes: Beyrichia quadrilirata Hall and Whitfield and 

 Tetradella subquadrans Ulrich. 

 Tetradella Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, pp. 112-114. — Miller, 

 N. A. Geol. Pal., 1st App., 1892, p. 711.— Ulrich, Geol. Minnesota, 3, pt. 2, 

 1894, p. 677; Zittel-Eastman Textb. Pal., 1, 1900, p. 644.— Ulrich and Bassler, 

 Proc. U. S. Nat. Mus., 35, 1908, p. 306.— Cumings, 32d Ann. Rep. Dep. Geol. 

 Nat. Res. Indiana, 1908, p. 1041. — Bonnema, Mitt, Miii. Geol. Inst. Groningen, 

 2, 1909, p. 35.— Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 353— 

 Bassler, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 738. 



Tetradella chambersi Ulrich. See Ceratopsis chambersi. 



Tetradella lunatifera (Ulrich). 



Strepula lunatifera Ulrich, Geol. Surv. Canada, Cont. Micro-Pal., pt. 2, 1889, 

 p. 56, pi. 9, figs. 14, 14b. — Lesley, Geol. Surv. Pennsylvania, Rep. P4, 1890, 

 p. 1100, figs. 



Tetradella lunatifera Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 112; 

 Geol. Minnesota, 3, pt, 2, 1894, p. 680, pi. 46, figs. 12-14, 51a, 51b.— 

 Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 2, 1895, p. 127.— Ulrich and 

 Bassler, Proc. U. S. Nat. Mus., 35, 1908, pi. 39, fig. 6.— Grabau and Shimer, 

 N. A. Index Fossils, 2, 1910, p. 353, fig. 1658h, i. 



Richmond: Stony Mountain, Manitoba; Anticosti; Ohio; Indiana; and Kentucky. 



Trenton: Cannon Falls, etc., Minnesota; Iowa; Kentucky; Tennessee; etc. 



Plesioty pes. —Cat. No. 41385, U.S.N.M. (Ulrich). 



Tetradella oculifera Ulrich. See Ceratopsis oculifera. 



Tetradella quadrilirata (Hall and Whitfield). 



Beyrichia quadrilirata Hall and Whitfield, Geol. Surv. Ohio, Pal., 2, 1875, p. 105, 



pi. 4, figs. 6, 7. 

 Beyrichia regularis Miller (not Emmons), Cincinnati Quart. Jour. Sci., 2, 1875, 



p. 351. 

 Strepula quadrilirata Ulrich, Geol. Surv. Canada, Cont, Micro-Pal., pt. 2, 1889, 



p. 54, pi. 9, fig. 12. — Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 



1100, figs. 

 Tetradella quadrilirata Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 112; 



Geol. Minnesota, 3, pt. 2, 1891, p. 679, pi. 46, figs. 1-11.— Ulrich and Bassler, 



Proc. U. S. Nat, Mus., 35, 1908, pi. 39, figs. 4, 5.— Cumings, 32d Ann. Rep. 



