148 Trans. Acad. Sci. of St. Louis 
Pentremites bradleyi MEEK. 
1873, Geological Survey of the Territories, 6th Ann. Report, 
F. V. Ha yden, p. 470 (not figured). 
ee ES Divide between Ross Fork and Lincoln Valley, 
Montana. 
Pentremites bradleyi MEEK, HamBacu. 
1903, Transactions, St. Louis Academy of Science, vol. 13, p. 56, 
5, he. 7. 
Subcarboniferous; Divide between Ross Fork and Lincoln Val- 
ley, Montana. 
Pentremites bradleyi MEEK, CLARK. 
1917, Bulletin Museum of Comparative Zoology, vol. 61, No. 9, 
p- 368 (listed, not figured). 
Subcarboniferous; Divide between Ross Fork and Lincoln Val- 
ley Montana 
Pentremites brevis ULricu, Butts. 
1917, Kentucky Geological hap Miss. formations of Western 
Kentucky, p. 100, pl. 24, fig. 
Glen Dean limestone; One 
Pentremites brevis ULRIcH, WELLER. 
1920, Illinois State Geological Survey, Bull. 41, pp. 369, 370, 
pl. 4, figs. 43-46. 
Upper Okaw, Glen Dean limestone; Randolph County, Hardin 
County, Illinois. 
Pentremites brevis ULricH, Butts. 
1926, ep ae Geological Survey, Special Report No. 14, p. 198, 
pl. 65, fig. 
Bangor uae Glen Dean Horizon; Paint Rock River, 
Marshall County, Alabama. 
Pentremites broadheadi Hamsacu. 
1886, Moy acesies St. Louis Academy of Science, vol. 4, p. 159, 
pl. B., fig. 6. 
abn limestone; Evansville, Illinois. 
Pentremites burlingtonensis MEEK and WoRTHEN. 
1870, Proceedings, Philadelphia Academy of Science, p. 33. 
Upper Burlington limestone; Burlington, Iowa. 
Pentremites burlingtonensis MEEK and WorTHEN. 
1873, Illinois State Geological Survey, vol. 5, p. 461, pl. 8, fig. 7. 
Burlington limestone; Burlington, Iowa. 
