INDEX 
1 68 
Carpocrininae, 41. 
Carpocrinus, 41. 
sculptus, 41. 
simplex, 41. 
Caryocrinus bulbosus, 143. 
milliganae, 143. 
ornatus, 143. 
persculptus, 143. 
Castocrinus, loi. 
billmgsianus, no. 
Catillocrinidae, paper on, 96. 
Catillocrinus, 73, 82, 89. 
Chapman, K. M., 9, ii. 
Characters in classification, 41. 
changes in, 125. 
Cheirocrinus, loi, 103. 
clams, loi, 102, 121. 
dactylus, lOi. 
ventricosus, 123. 
Chicago area, 8. 
University of, 6, ii. 
Classification, 41. 
Clidochirus, 69. 
americanus, 69. 
Clonocrinus, 32, 34. 
■ occidentalis, 34. 
Clusters of crinoids, 63. 
Coccocrinus, 48. 
zone, 4. 
bacca, 3, 48, 49, 50. 
rosaceus, 49, 50, 51. 
Coelocrinus, 47. 
Collections and localities : 
American Mus. Nat. Hist., 7, ii. 
Beachler, Chas. S., 6, 9, 10. 
Braun, Frederick, 6, 7, 10, ii. 
Chicago area, 8. 
University of, 6, ii. 
Decatur County, Tennessee, 4. 
Dudley, England, 8. 
Elrod, Moses, 6, 10. 
Gotland, Sweden, 8. 
Hall, James, 6, 7, ii. 
• Hammell, John F., 6, 10. 
Illinois, University of, ii. 
Jewett, Col., 7. 
Lockport, New York, 7. 
Milligan, Mrs. J. M., 2, ii. 
Newsom, Tennessee, 10. 
New York State Museum, 7, ii, 
Pate, W. F., 3, 4, II. 
Ringueberg, E. N. S., 7, 10. 
Safford, i, 2. 
Ste. Genevieve Co., Missouri, 75, 79. 
St. Paul, Indiana, 6. 
I'roost, Gerard, i, ii. 
Ulrich, E. O., II. 
Wabash, Indiana, 6. 
Wachsmuth, Charles, 3. 
Waldron, Indiana, 6. 
Walker, Sir Edmund, ii. 
Worthen, A. H., 2. 
Corymbocrinus, 34. 
Cremacrinus, loi, 102, 103, 104, 105, 116. 
diagram of, 91. 
articulosus, 100, 108. 
billingsianus, no. 
decatur, 107. 
furcillatus, no. 
I Kentuckiensis, 109. 
punctatus, loi, 102, no. 
rugosus, no. 
simplex, 107. 
tubuliferus, 94, 96, 106. 
ulrichi, 103. 
Crotalocrinus, 128. 
cora, 129. 
pulcher, 130. 
rugosus, 129. 
Crown, mobility on base, 96, 98. 
recumbent position, 99, 124. 
Cryptodiscus, 40. 
Culicocrinus, 49, 50. 
nodosus, SI. 
spinosus, 51. 
Cupellaecrinites, 55. 
Cyathocrinidae, 131. 
Cyathocrinus, 133. 
decatur, 134. 
polyxo, 138. 
striolatus, 134. 
wilsoni, 134. 
Cylicocrinus canaliculatus, 43. 
spinosus, 44. 
Cypellaecrinus, 55. 
Cyphocrinus, 14. 
chicagoensis, 15. 
gorbyi, 15. 
Cytocrinus laevis, 28. 
Decatur formation, 2, 5, 47. 
De Loriol, 104. 
Deltacrinus, loi, 102, 103. 
clarus, 102, 121. 
Dendrocrinus nucleus, 138. 
Besmidocrinus, 43. 
— — dubius, 43. 
laurelianus, 43. 
Dimerocrinidae, 12. 
Dimerocrinus, 12. 
inornatus, 13. 
milliganae, 13. 
nodobasis, 13. 
planus, 13. 
Dolatocrinus, paper on, 23, 59. 
Dudley, England, 8. 
collections at, 8. 
Museum, 8, n, 63. 
Ectenocrinus, 89. 
Elrod, Moses, 6, 10. 
Emperocrinus indianensis, 23. 
Eomyelodactyliis rotundus, 86. 
Eucalyptocrinus, 18, 35. 
zone, 4, 37. 
crassus, 16, 39. 
depressus, 38. 
elrodi, 36. 
lindahli, 36. 
magnus, 36. 
milliganae, 37. 
ovalis, 36. 
