REPORT OX THE CRINOIDEA. 



43: 



Mdacrinus mjvilUi, 129, 130, 2SS, 342-344, 354, 

 357, 358, 359, 360, 362-365, 308, 

 377, 378, 387, 389, 391 (PI. xlvii. 

 figs. 1-5; PL xlviii.). 



Micropocrinus, 143, 216. 



MiUericrimis, 8, 11, 25,49, 54, 131, 135, 153, 256, 

 270,271,281,-282,340. 



nodofkinng, 250. 



jn-aitf, 20, 26, 51, 132, 328. 



simjihr, 250. 



Monstrosities, 70, 347. 



Mouth, 56, 68-70, 91, 103, 156, 100, 403. 



Moutli-sliields of Ophiurids, 2, 169. 



Musdes, 9-11, 11.3-115, 414, 41.'".. 



Myelodactyloidea, 192, 193. 



Myelodacfyhis, 192, 193. 



MyrtiUocrinus, 146. 



Mymstoma, 70, 133-135, 334, 358, 304, 369. 

 dcformator, 324. 

 pcntacrini, 324, 304. 

 iryville-thomsoni, 347, 302, 304. 



Nuocriiioidea, 9, 38, 49,51, 59, 142, 145, 147-157, 

 160-162, 170-173, 181, 185, 194, 195, 196, 

 217, 224, 270, 295, 309, 411. 



Neocrinus, 273, 279, 280, 302, 334. 



Nerve-fibres of stem, 23, 31, 116, 119, 120. 



Nervous syst<'tn, 111-127, 407-416. 



Neuro-vascular axis of stem, 194, 413. 



Xodal joints in stem of Pentacrinida?, 4, 12-15, 17, 

 19, 10.5, 107, 291. 



Ocular plates of Echini, 2, 168, 109, 393, 394, 402. 



Odontophore of Starfishes, 2, 398-400. 



Ollacrinus, 157. 



Onychommis, 41, 42, 151, 181, 182, 372. 



Oral pinnules of Antedon, 59, 115. 



Oral plates, 2, 70, 73, 94, 95, 156-164, 167-173, 178, 

 184, 185, 398 ; of Bathycrinus, 234; of Coma- 

 Ma, 71, 72, 156; of Uolopus, 70, 72, 95, 156, 

 198, 208 ; of Hyocrinus, 70, 72, 94, 95, 156, 

 219; of Rhizocrimis, 70, 72, 156, 219, 255; 

 of Thaumatocrimis, 70, 72, 160, 161, 371. 



Orocentral, 158, 159, 107-172, 178, 184. 



Ovary, 109-111, 210. 



Ovoid gland, 104-100, 400, 407. 



Palaeocrinoidea, 32, 38, 39, 47-49, 54, 01, 08, 72, 132, 

 135, 147-158, 164-167, 172, 173, 181, 185, 

 194, 19.5, 217, 218, 224, 270, 271, 295, 358, 

 363, 370-372, 394. 



Palceostoma mirahiUs, 2. 



Parambulacral network, 123, 124, 415, 416. 



Parasites of Crinoid5=, 133-lS."). 

 Pahna animal, 301. 

 Palmars, 49, 177. 

 Palmier marin, 300. 



Pclmatozoa, 186, 187, 188, 190, 191, 19.3-195, 413. 

 Pcntacrinidse, 50, 71, 83, 110, 119, 125, 132, 142, 

 143, 140, 150, 154, 156, 100, 183- 

 18.5, 192, 228, 270, 271, 277, 289- 

 291, 294, 295, 310, 317, 320, 322, 

 323, 326, 337, 386. 

 Ambulacral tkeleton of, 02, 74-82 ; 

 arms of, 55, 56, 154, 155, 277, 278, 

 284-287 ; calyx of, 33, 291-294 ; 

 characters of young, 289-291, 327 ; 

 cirri of, 12, 288, 342; colouring 

 matter of, 128, 129, 210 ; colonics of, 

 130, 131 ; disk interradials of, 73, 

 70, 183; ovaries of, 110; parasites 

 of, 134, 135 ; pinnules of, 55, 58, 59, 

 155, 286; stem of, 3-6, 12-23, 287, 

 288, 290, 291, 31.5-319, 342, 343 ; 

 syzygies of, 4, 5, 254, 326. 

 Pentacrinin, 128, 129 ; 204, 210. 

 Pentanrinites, 272, 273. 



vidyaris, 274, 300. 

 Pentacrinoid larva of Comatida, 24, 39, 70, 89, 93, 95, 

 101, 107, 108, 116, 127, 158, 159, 161, 101, 

 194, 214, 219, 237, 251, 290, 396. 

 Pmiacrums, 3, 7-10, 13, 17-19, 49, 50, 53, 58, 62, 

 66, 74, 76-81, 84-88,90, 97, 101, 103, 

 104, 110, 117, 126, 127, 128-132, 1,34- 

 141, 143, 145, 148, 155, 165-167, 173, 

 181, 182, 192, 195, 210, 211, 228-231, 

 235, 244, 252, 256, 259, 261, 271, 272, 

 273, 274-300, 302-304, 316-320, 326, 

 340-343, 364, 309, 386, 388, 391, 392, 

 394, 409, 415. 

 Basals of, 34, 35, 282-284, 293, 336; 

 chambered organ of, 105, 292 ; disk of, 

 68, 70, 77, 91, 279 ; geographical and 

 bathymetrical distribution of, 136-141, 

 300, 343, 391, 392; geological history 

 of, 294-300 ; intervisceral blood-vessek 

 of, 101, 102 ; labial plexus of, 93, 100 ; 

 plexiform gland of, 105; primary inter- 

 radial cords of, 124-126, 292, 293; 

 radials of, 289, 293, 294 ; radial plug 

 of, 34, 293; stem of, 12-23, 287, 288, 

 31.5-319,342, 343; vascular axis in .stem 

 of, 23, 107 ; water-vascular ring of, 93. 



