278 



ECHINODERMA TA. 



[SAC. 



nodulosus, Hall, 1862, 15th Rep. N. Y. 



Mus. Nat. Hist., p. 126, Ham. Gr. 

 pyriformis, see Archseocrinus pyriformis. 

 rectus, Hall, 1867, 20th Rep. N. Y. Mus. 



Nat. Hist., p. 368, Niagara Gr. 

 spinosus, Hall, 1862, 15th Rep. N. Y. 



Mus. Nat. Hist., p. 127, Ham. Gr. 

 varsoviensis, Hall, 1860, Supp. to Geo. 



Sur. Iowa, p. 80, Warsaw Gr. 

 vesperalis, White, 1880, Proc. U. S. Nat. 



wortheni, Hall, 1858, Geo. Sur. Iowa, p. 



556, Burlington Gr. 



SACCOCRINUS, Hall, 1852, Pal. N. Y., vol. 2, p. 

 205. [Ety. sakkos, bag; krinon, lily.] 

 Calyx large, urn-shaped ; basals 3; pri- 

 mary radials 3x5; secondary radials 1 

 to 4x10; tertiary radials, in some spe- 

 cies; regular interradials 10 to 17 ; vault 

 depressed, opening subcentral ; arms 10 

 to 30 ; column round. Type S. speciosus. 



FIG. 420. Saccocrinus amplus. Diagram. 



Mus., vol. 2, p. 259, and Cont. to. Pal. 

 No. 6, p. 129, Up. Coal Meas. 

 wachsmutbi, Hall, 1861, Desc. New Grin., 

 p. 18, Burlington Gr. 



watersianu8,wachsmuth 



^t^^SSbt & Springer, (in press,) 



g Geo. Sur. 111., vol. 8, 



|H p. 184, Kinderhook, 



w5 



Itt 



^gV 

 ^^r^ 



whitii, Hall, 1861, Desc. 

 New Grin., p. 9, and 

 Jour. Bost. Soc. Nat. 



Hist., vol. 7, p. 324, j 

 Burlington Gr. 

 KIG. 42i-Rhodocri- whitii var. burling- 

 nus watersianus. tonensis, Hall, 1861, 



Desc. New Grin., p. 9, and Jour. Bost. Soc. 

 Nat. Hist., vol. 7, p. 325, Burlington Gr. 



amplus, Meek & Worthen, 1861, (Actino- 



crinus amplus,) Proc. Acad. Nat. Sci. 



Phil., p. 133, and Geo. Sur. 111., vol. 3, 



p. 470, Burlington Gr. 

 christyi, Hall', 1863, 



(Actinocrinus, chris- 

 tyi,) Trans.Alb.Inst., 



vol. 4, p. 196, and 



28th Rep. N. Y. Mus. 



Nat. Hist., p. 127, 



Niagara Gr. 

 egani, S. A. Miller, 



1881, Jour. Gin. Soc. FIG. 422. - Saccocri- 



Nat. Hist, vol. 4, p. nus <*rtotyi. 



173, Niagara Gr. 

 infelix, Winchell & Marcy, 1865, (Megis- 



tocrinus infelix,) Mem. Bost. Soc. Nat. 



Hist., p. 110, Niagara Gr. 



