Greger-Eublastoidea 171 
Hale formation, Brentwood limestone; F. hieagate Brentwood, 
Arkansas; Fort Gibson, Gase, Okl shies 
Pentremites sampsoni HamBacH 
1886, Transactions, St. i Madekay of Science, vol. 4, pp. 
551-552, pl. D, figs. 2-2 
Chouteau limestone; Pettis County, Missouri. 
Pentremites saxiomontanus CLARK. 
1917, Bulletin, Museum ones Zoology, vol. 61, No. 9, p. 
363, pl. 1, figs. 1-6, 14, August, 1917. 
Miss. Quadrant formation; Old Baldy, near Virginia City, Mon- 
tana. 
Pentremites sayi SHUMARD. 
1855, The lst and 2nd Annual Reports of the Geological Survey 
of Missouri, by G. C. Swallow, Jefferson City, pp. 185-186, pl. 
B, figs. ] a, b, c, d 
Encrinital nee tone; Boone, mane Jefferson, St. Louis and 
Ste. Genevieve Counties, Misso 
Pentremites serratus HAMBACH. 
1903, Transactions, St. Louis Academy of Science, vol. 13, pp. 
56- 57, pl. 4, fig. 9 
Chester lisiiounctids Ste. Genevieve, Missouri; Baldwin, Illinois. 
Pentremites serrata HAMBACH, BUTTs. 
1917, Kentucky Geological Survey, Paopre: re Formations of 
Western Kentucky, p. 116, pl. 28, figs. 10-11. 
Close and Buffalo Wallow REED 8s Tar Springs, Cloverport, 
Kentucky. 
Pentremites sirius WHITE. 
1862, Mire one Boston Society of Natural History, vol. 9, p. 
20, fi 
peers 4 promi ; Iowa. 
Pentremites spicatus ULRICH. 
1917, Kentucky Geological Survey, Formations of the Chester 
Series, p. 263, pl. 7, figs. 33-35. 
Glen Dean limestone; Grayson and Breckenridge Counties, 
Kentucky; Dover Hill, Illinois. 
Pentremites spicatus ULRicu, Butts. 
1917, Kentucky Geological Survey, Mississippian Formations of 
estern Kentucky, p. 100, pl. 24, figs. 3-4. 
Glen Dean limestone; Cloverport, Kentucky. 
