432 



THE VOYAGE OF H.M.S. CHALLENGER. 



Anchylosis, 3, 37. 

 Ancyrocnnus, 19. 



Ant&Jon, 33, 36, 57, 68, 74, 94, 127, 129, 143, 144, 

 154, 237, 249, 268, 291, 376-38.5, 402- 

 404 ; ambulacra of, 83-85 ; digestive tube 

 of, 88, 89 ; disk of, 68, 84, 85 ; geographi- 

 cal and bathymetrical distribution of, 136- 

 141; labial plexus of, 97-100, 404-407; 

 plexiform gland of, 101, 102, 235. ' 



ncoda, 57, 83, 84, 93, 109, 110, 113, 128 

 (PL liv. fig.s. 1-4; PL Iv. fig. 5). 



angusticahjx, 57, 83, 84, 93, 109, 110, 113, 

 128, 135 (PL liv. lig. 5 ; PL Iv. fig. 6). 



antarctica, 92, 98. 



hadcurva, 84 (PL liv. fig. 9 ; PL Iv. fig. 7). 



campichei, 144. 



carinatu, 98, 109, 124, 130, 137, 235 (PL Ix. 

 fig. 2;. 



ilentata, 36, 130, 137. 



eschricliti, 10, 52, 5.5, 62, 67, 78, 83, 88, 90, 

 92, 93, 9.5-102, 109, HI, 112, 114, 118, 

 120, 122-124, 133, 137, 144, 153, 208- 

 210, 319; ambiUacral nerve of, 112, 118, 

 411 ; parambulacral network of, 123, 124, 

 416 ; radial blood-vessels of, 96 ; spongy 

 organ of, 98, 99 (PL lix. figs. G, 7 ; PL Ix. 

 figs. 3-6). 



jiuetuans, 280. 



hageni, 36. 



inuequalk, 83 (PL liv. Qg. 8). 



imerta, 57, 83 (PL liv. figs. 6, 7). 



lusitaniea, 315. 



miller i, 73. 



multiradiata, 84, 85 (PL Iv. figs. 3, 4). 



phalani/ium, 10, 36, 130, 318. 



proteda, 58. 



qiiadrata, 98, 99. 



rhodankus, 144. 



rosacea, 49, 50, 52, 58, 67, 70, 86, 88, 93, 

 95-98, 100-102, 104, 107-112, 118, 120, 

 122, 124, 12.5, 127, 129, 130, 133, 134, 

 280, 304, 404, 411, 413 ; anal jjlate of, 73; 

 calyx interradials of, 39 ; genital glands of, 

 109 ; labial plexus of, 98 ; plexiform gland 

 of, 102, 104; spongy organ of, 100 (PL Ivi. 

 fig. 6 ; PL lix. fig. 5). 



serohicidata, 336. 



spinifera, 277. 

 Antedouin, 129. 

 Anthodiata, 186, 190, 191. 



Apical dome plates, 157, 167, 168; of ActinocrinidiL', 

 164, 167; of the Blastoidea, 164, 173; of 

 Cyathocrinida?, 164, 172; of Ghjptocrinus, 184; 

 of Ichthyocrinidaj, 181, 183; oi Perieclioerinus, 

 171, 172; of Platycrinidffi, 164, 17.5-178; of 

 Ehodocrinida}, 164; oi Strotocriiivs, 171, 172. 

 Apical sy.stem, 2, 157, 172, 393-402. 

 Apiocrinida3, 32, 48, 54, 142, 183, 222, 225, 247, 



286. 

 Apiocrinites, 245. 



Apiocriuus, 8, 11, 2.5, 42, 49, 53, 68, 76, 125, 126, 

 135, 14.5-147, 150, 15.3, 154, 181, 183, 

 211, 223, 230, 249, 256, 270, 276, 289, 

 293, 340. 

 constrictus, 24, 257. 

 cornutus, 258. 

 crassus, 256. 

 insiijnis, 9. 

 marinifieus, 256. 

 martini, 39. 

 milleri, 215. 

 murchisonianus, 256. 

 par7cinso7ii, 9, 131, 150. 

 roissyanus, 39, 149, 150, 183, 215. 

 Arm-groove, 64, 65, 77-83. 



Arms, 47-56, 154, 194; oi Adinometra, 55-51 ,(jO,&^, 

 70 ; of Bathycrinus, 232, 233, 236 ; of Crinoids 

 and Cystids compared, 189 ; oi Extracrinus, 59- 

 61, 224, 277, 278 ; of Holopus, 207-209 ; of 

 Uijocrinus, 52, 53, 219, 224; of Pentacrinidit, 

 55, 56, 154, 15.5,277, 278,284-287; oi Rliizo- 

 critius, 52-54, 64, 65, 267. 

 Article basal of Apiocrinus and Bourgtieticrinus, 3, 



25, 15.3, 257. 

 Articulata, 145, 182, 195, 196. 



Articulation, bifascial, 8, 53, 231, 280, 304, 326, 

 329,330; muscular, 9-11, 146, 194; trifascial, 

 8, 9, 53, 231-233. 

 Asterencrinidea, 187. 

 Asterias, 245, 395, 396, 399, 400. 

 Astrocrinidae, 194. 

 Astrocrinus, 132. 



Atdecrimis, 34, 36, 56, 58, 68, 127, 137, 138, 140, 

 141, 144, 291, 292, 294, 371. 

 halanoides, 376, 380. 

 mhensis, 379. 

 Axial cords of rays and arms, 31, 114-127, 146, 407- 

 416; of Bathycrinus, 31, 119, 236; of Uolo- 

 pus, 119, 209, 236; of Pentacrinus, 124, 126, 

 293, 294; of Rlizocrinus, 119, 126, 252, 253. 



