146 Trans. Acad. Sci. of St. Louis 
Orophocrinus stelliformis (OWEN and SHuMARD), KEYEs. 
1894, “esi Geological Survey Pal., vol. 4, pp. 141-142, pl. 
18, figs. 1 . 
Lower ae limestone; Hannibal, Louisiana, Sedalia, 
Springfield, Missouri. 
Orophocrinus stelliformis (OwEN and SHumarD), RowLey. 
1905, American Geologist, vol. 35. p. 305. pl. 21, figs. 20, 22-24. 
Lower Burlington limestone; Louisiana, Pike County, Missouri. 
Orophocrinus whitei HALL, WHITFIELD. 
1893, American Museum of Natural History Memoir, vol. 1, p. 
36, pl. 3, figs. 25-28. 
PENTREMITES 
Pentremites abbreviatus HamBacu. 
886, Transactions, St. Louis Academy of Science, vol. 4, pp. 
155-156, pl. B., fig. 3. 
Kaskaskia Siiteacua: Evansville, Illinois. 
Pentremites abruptus ULRICH. 
1917, Kentucky Geological Survey, Formations of the Chester 
Series, p. 257, pl. 6, figs. 10-14. 
Gasper and Paint Creek formations; Huntsville, Alabama; 
Cowen, Tennessee; Floraville, Illinois. 
Pentremites altimarginatus CLaRK. 
1917, Bulletin Museum of Comparative Zoology, vol. 61, No. 
66, pl. 1, figs. 11-13. 
Mississippian Quadrant formation; Old Baldy, near Virginia 
ity, Montana. 
Pentremites altus RowLEy. 
1901, Le eT to Indiana Paleontology, vol. 1, No. 8, p. 
64, pl. 2. 
Mog ae a s Ridge, Tennessee, Bowling Green, Ken- 
tucky. 
Pentremites angularis Lyon. 
1860, bE ream St. Louis Academy of Science, vol. 1, p. 631, 
pl. 20, figs. 3 a-c 
Third limestone st Millstone-grit beds; Falls of Rough Creek, 
Breckenridge County, Kentucky. 
