INDEX 
I7T 
Pinnules, doubled, 20, 42. 
openings for, 59. 
Pionocrinus, 42. 
Pisocrinus, 72, 89. 
baccula, 75. 
benedicti, 77. 
campana, 76, 80. 
gemmiformis, 74. 
globosus, 79, 80. 
gorbyi, 78. 
granulosus, 75. 
milliganae , 78. 
ollula, 78, 80. 
pilula, 76, 80. 
pocillum, 76. 
pyriformis, 80. 
quinquelobus, 77, 78, 79. 
sphericus, 75, 78, 79. 
tennesseensis, 75, 79. 
Platycrinidae, 82. 
genus and species indet. No. i, 5i- 
No. 2, SI. 
No. 3, 52. 
Platycrinus retiarius, 52. 
huntsvillae, 52, 53. 
Primibrachs, unequal-faced, 94. 
ProcUvocrinus, loi. 
Progressive characters, 94, 95 . 125. 
Protaxocrinus, 69. 
robustus, 70. 
Pseudocrinus qaudrifasciatus, 142. 
Pycnosaccus, 67. 
americanus, 67. 
dubius, 68. 
laurelianus, 67. 
patei, 67. 
welleri, 67. 
Racine dolomite, 8. 
Respiratory pores, 59. 
Resser, C. E., ii. 
Rhodocrinidae, 22. 
genus and species indet., 24. 
Riks Museum, Stockholm, 8. 
Ringueberg, E. N. S., 7, 9, 10, 88, loi, 103, 104. 
Rochester shale, 7, 10. 
Roemer, C. F., i, 18. 
Rominger, Carl, 2. 
Rowley, R. R., 75, 79. 
Saccocrinus, 44, 45. 
benedicti, 46. 
cuspidatus, 46. 
speciosus, 45. 
umbrosus, 46. 
Safford, J. M., i, ii. 
Sagenocrinidae, 68. 
Sagenocrinoidea, 64. 
Sagenocrinus, 68. 
americanus, 68. 
clarki, 68. 
St. Paul, Indiana, 6. 
Schuchert, C., 129. 
Schultze, L., 74, 81. 
Scyphocrinus, paper on, 23, 57, 59. 
Segments of 1 . ant. radial, 89, 94, 95. 
Series of Calceocrinidae, 91. 
Slocom, A. W., 8, 9, 129. 
Species, number of, 8. 
Springer, R, 23, 57, 59. 
Paper on Catillocrinidae, 96. 
Dolatocrinus, 21, 23, 59. 
Scyphocrinus, 23, 57, 59. 
Unusual Forms, 25, 85. 
Zittel-Eastman Textb., loi. 
Steganocrinus, 20. 
sculptus, 20. 
Stem, asymmetric location, 89, 96. 
bending of crown on, 88, 99. 
indentation by, no, 122. 
sessile condition of, 99. 
shifting of, 96. 
Stephanocrinus, 139. 
angulatus, 139. 
gemmiformis, 140. 
Stribalocystites gorbyi, 142. 
Subanal plate, 89. 
Suborals, 49. 
Supplementary plates, 97. 
Symbathocrinus, 73. 
' tennesseensis, 79, 80. 
Syiichirocrinus anqlictts, 119. 
T-piece, 89. 
Taxocrinidae, 69. 
Taxocrinoidea, 69. 
Tennessee area, i. 
I Tetracystis fenestratus, 14 1. 
Text-figures, 91, 94, 112. 
Thalamocrinus, 131. 
cylindricus, 132. 
elongatus, 132. 
globosus, 132. 
ovatus, 13 1. 
Thomas, A. O., 126. 
Thysanocrinns, 12. 
Tiaracrinus, 81, 82. 
quadrifrons, 81. 
soyei, 81. 
Torynocrinus, 98. 
Triacrinus, 74, 89. 
altus, 74. 
depressus, 74, 80. 
Troost, Gerard, i, ii. 
Troostocrinus, 141. 
zone, 4. 
reinwardti, 141. 
sanctipaulensis, 141. 
! 
Uintacrinus, 137. 
Ulrich, E. O., ii, 97, 100, loi. 
United States National Museum, 8, ii. 
Unusual Forms of Fossil Crinoids, 25, 85. 
Vanderbilt University, 2, ii. 
Variation in characters, 124, 125. 
