GENERAL INDEX. 



819 



Anthemocrinus, 77, 215. 



Anus, 21, 35, 124, 134, 139, 155. 



of Carabocrinus, 187. 



of Cupressocrinus, 137. 



of Cyathoerinus, 137. 



of Kaplocrinus, 94, 137. 



of Hyocrinus, 94. 



of Ichthyoorinus, 138. 



of Pisocrinus, 136. 



of Poterioorimis, 187. 



of Symbathocrinus, 137. 



covered by a Gasteropod, 240, 566, 704, 



793. 

 Aorocrinus, 362, 470, 487, 547. 

 canaliculatns, 475. (PI. XLV, figs. 



6a, b.) 



Cassedayi, 483. (PI. XLII, figs, lla-12.) 



. coiicavus, 482. (PL XLn, figs. 13a-c.) 



elegans, 480. 



helice, 481. (PI. XLV, fig. 2, 5.) 



immaturus, 471. 



parvibasis, 473, 477. (PI. XLV, figs. 



3a, b.) 



parvus, 477. (PI. XLV, figs. 11a, b.) 



radiatus, 472. (PI. XLV, fig. 1.) 



spinosulus, 478, 481. (PI. XLUI, fig. 4 ; 



XLIV, figs. 8a, b.) 



subaculeatus, 476. (PI. XLV, figs. 7a, b.) 



Apiocrinidse, 53, 59, 65, 117. 

 Apiocrinus, 13, 40, 60, 69, 117, 152. 



roissyanus, 24, 117. 



ArchEeoorinus, 119, 175, 215, 249, 253. 



desideratus, 257. (PL X, figs. 4a, b.) 



laounosus, 254, 255. (PL X, fig. 1.) 



marginatus, 275. 



microbasalis, 256. (PL X, figs. 2a-c.) 



2niscjis, 278. 



pyriformis, 255. (PL X. figs. 3a, b.) 



scul2)tv.s, 251. 



Armlets, 34, 82, 160. 



Arm openings, 36, 86. 



Arm plates, or "free brachials," 33, 73. 



Arms, 88, 73, 88, 155. 



biserial, 34, 78, 155, 161. 



uoiserial, 34, 78, 155. 



paired, 86. 



commence at, 69. 



■ mobility and mode of union, 87, 155. 



mode of branching, 75, 78, 86, 155, 161, 



364. 

 Arthracantlia, 741, 747. 



Arthracantha depressa, 751. (PL LXXVI, 



figs. 3a, b.) 

 . ithaoensis, 747, 749. (PL LXXVI, figs. 



la-c.) 

 punctobrachiata, 750, 752. (PI. LXXVI, 



figs. 2a, b.) 

 Articles hrachiaiix, 17. 

 Artieulata (W. and Sp.), 26, 88, 149, 152, 154, 



169. 



■ (J. S. Miller), 13, 152. 



(.Job. MliUer), 15, 152. 



(Zittel), 23. 



Articulation, 37, 87. 



Artioulosa, 153. 



Asteria, 12. 



Asteroblastus, 146. 



Asterocrinus (JMunster), 292. 



Asterocrinus (Lyon), 292, 791, 793. 



capitalis, 794. 



coronariiis, 795. 



Astracriyioidea, 16. 

 Astrocrinites (Cumberland), 292. 

 Astrocrinites (Conrad), 292. 



2McJiydactylus, 296. 



Astroerinus (Ether, and Carp.), 292. 

 Astropodia, 647. 

 Astylida, 16. 

 Astylocrinus, 17. 

 Astyloorinidae, 172. 

 Asymmetry, 146. 

 Atelestocrinus, 132, 148, 159. 

 Aulocrinus, 138. 



Agassizi, 188. (PL VII, fig. 9.) 



Axial canal, 33, 36, 45, 100, 140. 



Asial cords, 36. 



Axillaries, 34. 



Baeroerinus, 72, 131, 148, 158. 



Balanocrinus, 207. 



■ sculpitus, 208. 



Barrandeocrinus, 362, 484, 485. 



sceptrnm, 485. (PL VIII, fig. 1.) 



Baryerinus, 41, 45, 82, 132, 160. 



Basalia, 15. 



Basala, 15, 17, 27, 33, 52. 



anchylosis of, 57. 



evolution of different, 54-56. 



■ inferior face, 158. 



orientation of, 57, 153. 



orientation in Blastoids, 57, 153. 



outer face, 158. 



upper face, 37. 



