94 BULLETIN 64, UNITED STATES NATIONAL MUSEUM. 



Family CROMYOCMNIDiE Bather. 

 Genus EUPACHYCRINUS Meek and Worthen. 



EUPACHYCRINUS MANIFORMIS (Yandell and Shumard). 



Plate 11, fig. 4. 



Cyaihocrinus maniformis Yandell and Shumard, Contr. Geol. Kentucky, 1847, 

 p. 25, pi. i, fig. 2. 



Cyathocrinites gracilis Troost, Proc. Amer. Ass. Adv. Sci., II (read 1849), 

 1850, p. 61 (nomen nudum); MSS., 1850. 



Zeacrinus maniformis Hall, Rep. Geol. Surv. Iowa, I, Pt. 2, 1858, p. 682, 

 pi. xxv, fig. 8.— Shumard, Trans. Acad. Sci. St. Louis, II, 1866, p. 399 

 (catalogue name). — Miller, North Amer. Geol. and Pal., 1889, p. 288 (cat- 

 alogue name). 



Scaphiocrinus gracilis Shumard, Trans. Acad. Sci. St. Louis, II, No. 2, 1866, 

 p. 362 (catalogue name). 



Poteriocrinus (Scytalocrinus) maniformis Wachsmuth and Springer, Rev. 

 Palseocrinoidea, I, 1879, p. 117 (catalogue name). 



Eupachycrinus maniformis Wachsmuth and Springer, Rev. Palaeocrinoidea, III, 

 1886, p. 249 (catalogue name).— Keyes, Missouri Geol. Surv., IV, Pt. 1, 1894, 

 p. 217.— Weller, Bull. No. 153, U. S. Geol. Surv., 1898, p. 265 (catalogue 

 name) . 



The description by Troost is as follows: 



The pelvis is not visible. The costals [basals] are lanceolate, supporting in the 

 re-entering angles five pentagonal scapulars [radials], upon which rest a cuneiform arm 

 each supporting two hands. 



Occurs near Sparta, White County, Tennessee, accompanied with Pentremites in 

 oolitic limestone — I found it also near Iluntsville, Alabama. — Both Carboniferous. 



Observations. — The original description of this species is meager, 

 but being accompanied by a good figure, it, is possible to identify 

 other specimens with the type. Hall published in 1858 (p. 682) an 

 accurate and detailed description of the species. His figure repre- 

 sents a specimen with only one arm in the left postero-lateral ray, 

 but, as he suggests, this is probably an abnormal individual. The 

 specimen in the Troost collection has the normal two arms in this ray. 



Formation and locality. — Kaskaskia limestone. Near Sparta, White 

 County, Tennessee; Huntsville, Alabama; Chester, Illinois; Grayson 

 County, Kentucky. 



Cat. No. 39946, U.S.N.M. 



