152 Trans. Acad. Sci. of St. Louis 
Pentremites conoideus HALL, RowLEY. 
1902, Contributions to Indiana Paleontology, vol. 1, pt. 10, p. 
87, pl. 29, figs. 37-41. 
Warsaw? 
Pentremites conoideus HALL, Row.Ley. 
1903, Contributions to Indiana Paleontology, vol. 1, pt. 12, p. 
126, pl. 36, figs. 41-44. 
aca limestone; Lanesville, Indiana. 
Pentremites conoideus HAuLt, ULRICH. 
1905, U. S. Geological Survey Prof. Paper No. 36, p. 57, pl. 6, 
s. 1- 
Lower St. Louis limestone; Princeton, Kentucky. 
Pentremites conoideus HALL, RowLEy. 
1905, American Geologist, vol. 35, p. 306, pl. 21, figs. 25-26. 
Warsaw limestone; Grand Tower, Illinois. 
Pentremites conoideus HALL, aati 
1906, Indiana Department of Geology and Natural Resources, 
Annual Report, (1905) 1906, ol 1263, pl. 26, figs. 32-33. 
Warsaw limestone; Lanesville, Indiana. 
Pentremites conoideus HALL, SMITH. 
1906, Indiana Department of Geology and Natural Resources, 
30th Annual Report (1905) 1906, pp. 1219-1242 (discussion) 
text figs. 1-3, pls. 43-47. 
Salem, Harrodsburg limestone; Harrodsburg, Bloomington, 
Spergen Hill, Ellettsville, Stinesville, Indiana. 
Pentremites conoideus HALi, CLarK. 
1917, Bulletin, Museum of Comparative Zoology, vol. 61, No. 9, 
not figured). 
Carboniferous; Old Baldy, near Virginia City, Montana. 
Pentremites conoideus HALL, Burrs. 
1917, reste see: Geological Survey, Mississippian formations of 
entucky, p. 45, pl. 10, figs. 18, 19. 
St. eon limestone; Prinses, Seatucky: 
Pentremites conoideus HAL, Butt 
1926, Alabama Pion sarees Survey, Soil Report No. 14, p. 180, 
pl. 59, fig. 
Warsaw mee Blount Springs, Alabama. 
