524 



DR F. A. BATHER. 



Chicago University, 369, 442. 



Chiroerinus, see Gheirocrinus. 



Christiania, 7. 



Cigara, 589 : dusli. 



Cincinnatian, 565. 



Ciucinnatic period, 565. 



Cladocrinoidea, 15. 



cloaca, Cothurnocystis, 244. 



Coelocystis, 274, 281. 



coil of gut, Gheirocrinus, 600 ; Cothurnocystis, 243 ; 



Pleurocystis et alii, 384. 

 Cole, G. A. J., 12. 

 columnals, see stem. 

 Comarocystidae, 16, 18, 19, 262. 

 compressa, Glaphyrocystis, 595. 

 compression of theca, Carpoidea, 17, 22; Dendro- 



cystis, 47. 

 " concave " face, 25. 

 "concentric ridges," 402. 

 Coniston Limestone, 447, 449. 

 conjunct pectinirhombs, 301, 375. 

 constrictus, Gheirocrinus, 291, 295, 296, 298, 304, 



306, 307, 308, 310, 564, 574, 577, 598, 601, 



PI. iv. ff. 49-56, tf. 43, 44, 48-58. 

 "convex" face, 25; Dendrocystis, 49, 593; D. har- 



randei, 96 ; Z). sedgwicki, 112. 

 Coral Limestone, 7. 

 Cornuta, 26, 32. 

 Corwen, 446. 



Cothurnocystidae, 10, 32, 160, 260, 576. 

 Gothurnocystis, 10, 14, Z2,161, 560, 563, 571, 576, 



604; affinities, 245; ancestors, 592; bionomics 



and morphology, 223-244, 591 : curvata, elizae. 

 Gothurnocystis sp.^ PI. iv. f. 47. 

 Coulouma, H^rault, 253. 

 counterparts, value of, 8. 

 cover-plates, Gothurnocystis, 169; G. elizae, 198; 



Dendrocystis, 72 ; Trochocystis, 252. 

 curvata, Gothurnocystis, 161, 208, 222, 576, PI. iv. 



ff. 39-45, tf. 24-28 ; its shape, 234. 

 Cynwyd, 446. 

 cystid plates, 4. 



Gystidea : ahscondita, sedgwicki. 

 Cystidea, class, 1, 15 ; of Starfish Bed, 9, 10. 

 Cystoblastidae, 269. 

 Cystoblastinae, 285. 



Cystoblastus, 269, 276, 279, 281, 577; habit, 597. 

 Cystoidea, see Cystidea. 



D2 of Barrandb, 41, 91, 93, 561. 



D3 of Barbande, 41, 92, 110, 561. 



D4 of Barrande, 41, 93, 110, 561. 



D5 of Barrande, 7. 



Dalecarlia, 7. 



degener, Gheirocrinus, 307, 308, 



Dblage, Y., 40. j 



& H^ROUARD, E., 615. I 



deltoids, Gheirocrinus, 286, 296 ; G. constrictus, 323, < 

 324 ; Pleurocystis, 373. 



Dendrocystidae, 10, 16, 18, 20, 26, 32, 33, 39, 

 576. 



Dendrocystis, 10, 17, 31, 38, 40, 360, 560, 561, 570, 

 576, 604 ; ancestor, 588, 590 ; bionomics and 

 morphology, 582 ; described, 44 ; diagnosis, 40; 

 history, 39 ; relation to sea-floor, 593 : bar- 

 randei, paradoxica, rossica, scotica, sedgwicki. 



Dendrocystites, 26. 



Deutocystis, 72, 114, 588: modesta. 



diagnostic characters, Pleurocystis, 394. 



Dicellograptus : anceps. 



Dichoporita, 19, 264, 577. 



dimeres, see stem. 



dimerism of stem, 584. 



disjunct rhombs, 301. 



distribution of Cystidea, 559 ; Pleurocystis, 390. 



" dorsal," 23, 25. 



" dorso-ventral " compression, 22. 



Dow Hill, 4. 



Drummuck group, 4, 6, 467. 



Dubovicki, 35. 



dusli, Gigara, 87, 589. 



Eastman, C. R., 615. 



Echinoencrinidae, 272, 281, 577. 



Echinoencrininae, 271, 272. 



Echinoencrinus, 4, 269, 281, 356, 357, 384, 595. 



Echinosphaera, 559. 



Echinosphaeridae, 4, 262, 264. 



Edrioasteroidea, 1, 15. 



EicHWALD, C. E. v., 286, 288, 615. 



elegans, Pleurocrjstis, 390, 414, 419, 420, 4^1, 431, 



551, 552, 577, tf. 67. 

 eleutherozoic habit in Pelmatozoa, 612. 



modifications, 579-613. 



tendencies, Gheirocrinus, 607. 



elizae, Gothurnocystis, 161, 170, 211, 222, 576, PI. 



iii. ff. 26-38, tf. 14-23. 

 Elles, Gertrude L., 7, 467, 615. 

 Enoploura, 26. 



ensifer, Anomalocystites, 26, 28. 

 Eocystis, 114: lonyidactylus. 

 epistereom, Dendrocystis, 54. 

 Erinocystis, 269, 281, 374, 595. 

 Etage 5, 7. 

 Etheridgb, R., 615. 



[fil.], 4, 615. 



Eustelea, 18, 19. 



evolution: of biserial brachiole, 100; oi Pleurocystis, 



371; of stem, 589, in Dendrocystis, 85-88. 

 exornata, Pleurocystis, 390, 419, 426, 427, 551, 577. 



