﻿642 



Barrandeoceras Stern- 

 berg! , 408, 450, 

 592, 600 

 tyrannum, 406, 453, 

 600 



Bather, 380, 395, 396, 397 



Bathrnology, 380, 390 



Beale, 390 



Beddard, 389 



Beecher, 350, 364, 365, 

 392, 396, 397, 613 



Belemnoidea, 352, 356, 



357. 358, 373. 374 

 Biogenesis, law of, 390 

 Bioplastology, 380, 384, 



390 

 Blake, 396, 402, 403 

 Brachiopoda, 350, 392 

 Branco, 355, 359, 373, 



411,413, 414, 415, 417, 



609, 610 

 Brooks, 404, 405, 406, 407 

 Buckman, 380, 395, 396, 



397, 4 r 7. 419 



Caecosiphonula, 464 



Caecum, 404, 411, 412 



Caeleceras, 412 



Caloceras, 410 



Cataplasis, 394 



Cenoceras, 548, 550, 560, 

 604 

 aratum, 551, 604 

 clausum, 532, 604 

 granulosum, 553 

 intermedium. 550, 604 

 lineatum, 551, 604 



Cenogenesis, 401 



Centroceras, 497 

 tetragonum, 497 

 ammonis, 497 

 ohioense, 497 



Cephalopoda, 392 



Ceratitinae, 414, 416 



Choristoceras, 417 



Cicatrix, 403, 411 



Clarke, 350, 361, 411 



Cladonema, 398 



Clymeninse, 371, 563 



Clymenia antiquissima, 



500. 5°i 

 depressa, 489 

 incongrua, 488 

 rarospira, 467, 484 

 Coelogasteroceras, 498, 



519 

 canaliculatum, 498 

 Coloceras globatum, 541, 



602, 603 

 Conch, 359, 392 

 Contact furrow, 408 

 Cope, 350, 358, 380, 381, 



385, 386, 387,396 

 Coroniceras, 398 



trigonatum, 397 

 Cosmoceras bifurcatum, 



566, 596, 600 

 Cranoceras, 409, 520, 527, 



545 

 depressum, 527, 545 

 hospitale, 527 

 lineatum, 527 

 nigrum, 527 

 turnum, 527, 598 

 ^Ctetology, 384, 388, 389, 



39° 

 Crioceras latum, 565 



studeri, 372 

 Cycle, 397, 398 

 Cyclolituites, 503, 505 



Americanus, 505 



applanatus, 505 



lynceus, 505 

 Cymatoceras, 548, 553, 

 560 



Deslonchampsianum , 



554 

 elegans, 553 

 radiatum, 554 

 simplex, 554 

 Cyrtoceras amplicorne, 



5ii 

 depressum, 527 

 hospitale, 527 

 lineatum, 527 

 liratum, 531 

 Murchisonia, 585 

 neutrum, 585 

 nigrum, 527 



Cyrtoceras nitidum, 585 

 tetragonum, 497 

 turnus, 527 

 uranum, 529 



Dall, 563 



Darwinian doctrine, 387 



Deltoceras, 433, 449 



planum, 450 

 Deroceras planicosta, 415 

 Descriptive terms, 422 

 Dewitz, 506 

 Dibranchiata, 352, 353 

 Didymoceras, 568, 573, 

 614 



cochleatum, 574 



nebrascense, 574 



tortum, 574 

 Digonioceras, 548, 549, 

 560, 604 



excavatum, 548, 604 



rotundum, 549 

 Diorugoceras p 1 a n i d o r- 



satum, 540, 602 

 Diphragmoceras, 363, 368. 



405, 412, 416 

 Diptychoceras, 578, 581 



lcevis, 581 

 Diplogenesis, 385, 616 

 Discites ammonis, 497 

 Discitoceras discors, 545 

 Discoceras, 458, 500 



antiquissimum, 445, 

 461, 501 



convolvens, 441 



Denckelmanni, 469 



Eatoni, 470 



Graftonense, 501 



teres, 467 



subcostatum, 457 

 Dissoconch, 392 

 Domatoceras, 545 

 Dorsal furrow, 408 



lobe, 408 



Echinodermata, 401 

 Ectergogenesis, 390 

 Edaphoceras, 429, 535 



hesperis, 536 



niotense, 536 



