334 



INDEX 



Aplocrinus, 151 



Apneumona, 226 



Apodes, 226 



Aporita, 69 



Aporocrinus, 201 



Apostolides, N. C., 261 



Arachniopleuriis, 312 



Araclmocriniis, 175 



Arachnocystis, 54 



Arachnoides, 318 



Arbacia, 308 



Arbacina, 307 



arcade -like spaces (Ast.), 

 248 



Archaeocidaris, 302 



Archaeocrinus, 200 



Archaeodiadema, 308 



ArcJiaeopneustes, 321 



Ar chaster, 251 



Archasterias, 250 



Arcliegocystis, 73 



Archiacia, 321 



Argaster, 250 



Argopatagus, 323 



Aristocrinus, 190 



Aristocystis, 44 



Aristotle, 218, 283 



arm (Crin.), 112 ; (Ast), 

 241; (Oph.), 262, 267, 

 270. See also brachia 



facet, 100 



pores, 130 

 Arthracantha, 158 

 Arthraster, 255 

 article basal, 108 

 articles bracliiaux, 204 

 Articulata (Bather), 178 ; 



(Jaekel), 141 ; (Miller), 



138 ; (Miiller), 138 ; (W. 



& Sp.), 139 



articulation (Grin.), 108 

 Articulosa (Jaekel), 141 ; 



(W. & Sp.) 140 

 Ascidiastella, 218 

 Ascocystis, 77 

 Aspidocrinvs, 201 

 Aspidodiadema, 308 

 Aspidosoma, 250 

 Aspidura, 278 

 Asteria, 201 

 Asterias, 201, 258 



rvtiens, 241 

 Asteriatites, 201 

 Asterid plane, 21 

 Asterina, 254 

 Asternata, 320 

 Asteroblastus, 80 

 Asterocrinus (Lyon), 159 



(Miinst.), 201 

 Asterocystis, 80 

 Asterodiscus, 254 



Asterodon, 253 

 Asteroidea, 239 ; diag- 

 nosed, 248 

 Asteropsis (Cott.), 309 



(M. & T.), 254 

 Asterostoma, 321 

 Asthenosoma, 311 

 Astrella, 252 

 Astridypeus, 317 

 Astrios, 202 

 Astroceras, 276 

 Astrochele, 276 

 Astrocnida, 276 

 Astroconia, 202 

 Astrocrinus (Austin), 91 



(Conr.), 161 



(Cumb.), 202 

 Astrocystites, 209 

 Astrodon, 276 

 Astrogomphus, 276 

 Astrogonium, 253 

 Astronyx, 276 

 Astropecten, 252 

 Astrophyton, 276 

 Astropodia, 202 

 Astroporpa, 276 

 Astropyga, 310 

 Astroschema, 276 

 Astrotoma, 276 

 Astylocrinus, 181 

 Ataxocrinus, 146 

 Atelecrinus, 195 

 Atelecystis, 51 

 Atdestocrinus, 179 

 Atelostomata, 318 

 Atocrimis, 202 

 Aulocrinus, 180 

 Anricularia, 5, 225 

 Austinocrinus, 183 

 Australanthus, 321 

 axial canal, 101 



cord, 12, 103 



organ, 23 ; (Ech.), 291 



sinus, 22 ; (Crin.), 103 ; 

 (Ast.) 243 ; (Oph.), 266 



axillare, axillary, 114 

 Ayers, H., 32 

 azygos plates, 204 



Bactrocrinus, 173 

 Baculocystis, 46 

 Baerocrinus, 145 

 Balanocrinus (Ag.), 182 



(Troost), 202 

 Balanocystis, 77 

 Barrande, J., 44, 48 

 Barrandeocrinus, 166 

 Barycrinus, 179 



basalia, basals (Crin.), 99, 

 122 ; (Ast), 246 ; 

 (Ech.), 294 ; (Oph.), 268 



Bathybiaster, 252 

 Bathycrinus, 186 

 Bathyplotes, 227 

 Batocrinus, 167 

 Baueria, 306 

 Baur, A., 218 

 Baur's vesicles, 32 

 Bdellacoma, 254 

 Belemnocrinus, 152 

 Belemnocystis, 51 

 Bell, F. J., 261, 285, 326 

 Belon, P., 218 

 BentJiaster, 257 

 Benthodytes, 229 

 Benthopecten, 251 

 Beyrichocrinus, 168 

 bifascial articulation, 117 

 Bipintiaria, 5, 248 

 biscuit spicules (Hoi.), 224 

 biserial arms, 115 

 bivium, 11 ; (Hoi.), 220 ; 



(Ech.), 296 

 Blainville, H. D. de, 240, 



260 



Blairocrinm, 169 

 Blakiaster, 251 

 Blastoidea diagnosed, 78 

 Blastoidocrinus, 80 

 Bohadsch, J. B., 218 

 Bohemicocrinus, 201 

 Boletia, 313 

 boss (Ech.), 287 

 Botkrioddant, 300 

 Bothriocidaroida, 300 

 Botriopygus, 320 

 Botryocrinus, 179 

 jBo urgueticrimis, 194 

 bourrelet, 319 

 brace, 289 

 brachia, 3, 100, 112. See 



also arm 



brachialia, 100, 204 

 Brachiocrinus, 146 

 brachiola, brachioles, 3, 41 

 Brachiolaria, 6, 248 

 branchiae (Ech.), 293 

 branchial vesicles, 245 

 Brandt, J. F., 226, 240 

 Breynia, 323 

 Breynius, J. P., 283 

 Briarocrinus, 162 

 Brisinga, 259 

 Brisingaster, 259 

 Brissopatagus, 323 

 Brissopsis, 322 

 Brissus, 323 

 Bronn, H. G., 40 

 biiccal fissures, 263 



papillae, 264 



shield, 264 

 Buch, L. v., 40 



