440 
Rhodocrinus, 371, 394. 
Root-joint of stem, 28. 
Rosette of Comatule, 34, 36, 106, 251, 291, 402; of 
Rhizocrinus, 34, 249, 251, 253. 
Saccosoma, 190, 195. 
Saceuli, 83, 127. 
Salenia, 395. 
Saumplittchen, 66, 74, 173, 174, 180. 
Scalpellum, 369. 
album, 134. 
balanoides, 134, 351, 355. 
Semiarticulata, 145, 
Side plates, 62, 66, 74, 79-83, 165. 
Solanocrinites, 272. 
Solanocrinus, 402, 403. 
Spongy organ, 98-101, 103, 406. 
Stelidiocrinus, 180. 
capitulum, summit of, 171. 
THE VOYAGE OF H.M.S. CHALLENGER. 
Testes of Hyocrinus, 220. 
| Tetracrinus, 216, 227. 
| Thaumatocrinus, 33, 34, 36, 39-42, 44, 45, 47, 58, 
68, 70-72, 127, 144, 148-151, 
156, 160, 166, 172, 179, 185, 223, 
291, 270, 371, 372, 392; anal 
appendage of, 41, 45, 371-372; 
basals of, 34, 36, 371; calyx 
interradials of, 39-41, 371; geo- 
graphical and bathymetrical dis- ~ 
tribution of, 137-140; oral plates 
of, 70, 72, 160, 161, 371. 
renovatus, 149, 872, 878, 
(Pl. lvi. figs. 1-5). 
Thiolliericrinus, 24, 143, 257. 
Thylacocrinus, 371. 
Tiarechinus princeps, 414. 
Torynocrinus, 142, 
377 
Stem, 5-7, 12-32, 54, 114, 135, 194, 401; of Bathy- | Uintacrinide, 142. 
crinus, 23, 24, 26-28, 226; of Extracrinus, 276, 
277, 287 ; of Hyocrinus, 5, 31, 32, 156, 218, 
221; of Metacrinus, 14, 15, 17, 19, 287, 288 
342, 343; of Pentacrinus, 12-33, 287, 288, 
315-319 ; of Rhizocrinus, 23-31, 107, 256. 
Stemmatocrinus, 150, 152-154. 
Stilasterite, 187. 
Stomatocrinoidea, 147, 156, 195, 196. 
Strotocrinus, vault of, 171, 172. 
Stylifer, 134. 
Stylina, 134. 
Subambulacral plates, 75, 85, 165. 
Subangularen, 276, 278, 296. 
Support of Hudesicrinus, 214-216. 
Supra-nodal joint, 14. 
Symbathocrinus, 54, 158, 163, 164, 167, 169-171, 
179. 
Synostosis, 2, 3. 
Syzygial interval, 52. 
Syzygy, 3-5, 8, 9, 15, 50, 52, 53, 231-233; of Coma- 
tula, 4, 53; of Pentacrinide, 4, 5, 254, 326; of 
Rhizocrinus, 5, 9, 254, 255. 
‘alarocrinus, vault of, 177. 
Taxocrinus, 41, 42, 150, 151, 154, 211, 372. 
Tentacles, 56, 57, 63, 69, 75, 93, 115, 117, 189, 194, 
416; of Holopus, 208. 
Tentaculata, 186, 189. 
Tegmen calycis. See Vault. 
Termination of stem in Pentacrinide, 18-23, 315-319. 
Tessellata, 142, 145-148, 191, 195, 196. 
9 
=9 
Uintacrinus, 132, 142, 147-151, 196. 
Under-basals, 152, 153, 168, 169, 394-399, 402. 
Ungrooved arms of Actinometra, 56, 57, 69, 70, 113, 
115. 
| Vascular axis of stem, 15, 23, 104, 107, 235. 
| Vault, 41, 42, 156, 157, 166-168, 185; of Actino- 
crinide, 164-167, 173, 180, 181 ; of Blastoidea, 
173; of Coccocrinus, 160-163; of Cyatho- 
crinide, 173, 181; of Glyptocrinus, 183, 184; 
of Ichthyocrinide, 181, 182; of Platycrinide, 
170, 171, 175-181; of Reteoerinus, 184; of 
Xenocrinus, 185. 
Vegetative system, 54-56. 
Ventral radial furrow, 252. 
Ventral sac, 44, 46, 76. 
Verruca, 349, 353, 355, 369. 
nitida, 134, fs 
Visceral mass, 1, 33, 67-70, 164, 166 ; of Bathycrinus, 
33, 90, 234; of Rhizocrinus, 33, 90, 254, 255. 
Visceral skeleton, 85-87. 
Water-pores, 73, 75, 76, 81, 84, 92-96, 106, 194, 219, 
220, 404-406. 
Water-tubes, 92-94, 106, 165, 236, 404. 
Water-vascular ring, 1, 92-94, 165, 405. 
Water-vascular system, 92-96, 106, 194, 406. 
| Water-vessels (radial), 1, 70, 92-94. 
Woodocrinus, 20. 
Xenocrinus, 42, 44, 181, 183-185, 371, 372. 
Zoroaster ackleyi, 399. 
Julgens, 106, 395, 399. 
