6o6 



NEW YORK STATE MUSEUM 



Conrad, cited, 404, 478, 521. 

 Cow Head, Newfoundland, fauna, 

 _ 525- 



Crick, G. C, cited, 517, 528. 

 Cryptozoon, 399. 



steeli, 399. 

 Cushing, H. P., study of geology of 

 Essex and Clinton counties, 393- 

 94; cited, 399- 

 Cycloceras ? (Spyroceras?) recti- 



annulatum, 506. 

 Cycloceratidae, 432, 438-45, 441, 450, 



510. 

 -Cyclolituites, 522. 

 americanus, 522. 

 Cyclostomiceras, 500-3, 511. 



cassinense, 501-2, 503, 511, 512. 

 explanation of plates, 602, 604. 

 figure, 502. 

 minimum, 502-3, 511, 512. 

 explanation of plate, 598. 

 figure, 503. 

 Cyrtactinoceras, 488-89, 511. 

 boycii, 489-91, 511, 512. 

 explanation of plate, S98. 

 figure, 490. 

 champlainense sp. nov., 488, 491- 

 92, 511, 512. 

 explanation of plates, 596, 600. 

 figure, 491. 

 Cyrtendoceras, 430-31, 509. 

 priscum sp. nov., 430-31, 509. 512. 

 explanation of plate,- 532. 

 Cyrtendoceratidae, 509, 430-31. 

 Cyrtoceras, 399, 498. 



acinacellum, 508, 511, 513. 



beekmanense, 506, 511, 513. 



beekmanensis, 506. 



boycii, 489. 



confertissimum, 506-8, 511, 513. 



explanation of plate, 604. 

 dactyloides, 508. 

 kirbyi, 495, 506. 

 laticurvatum, 499. 

 raei, 496. 

 rebelle, 489. 

 subturbinatum, 491. 

 Cyrtocerina, 519. 

 mercurius, 519. 

 Cyrtochoanites, 486-508, 499, 507, 511. 



Deltoceras, 480, 482, 510, 513, 521, 

 523, 524, 526. 

 vaningeni sp. nov., 454, 480-82, 510, 

 512. 

 explanation of plates, 578, 580, 



582, 584. 

 figure, 481. 

 Dewitz, cited, 415, 416. 

 Discoceras, 452, 475, 482. 

 antiquissimum, 475. 

 convolvens?, 521. 

 eatoni, 453, 476. 

 internestriatum, 453, 479. 

 Distribution of Cephalopoda, synop- 

 tic table, 512-13; paleogeographic, 

 514- 

 Dwight, W. B., cited, 508, 518, 527. 

 Dyer, cited, 521. 



East Shoreham section, 399. 

 Eastman, cited, 405, 412, 432, 450, 489, 



495, 500. 

 Emmons, cited, 400. 

 Endoceras, 404, 405, 416, 418-25, 509. 

 (Nanno) belemnitiforme, 405, 412, 



428. 

 champlainense sp. nov., 418-21, 505, 

 509, 512. 

 explanation of plate. 530. 

 figure, 419. 

 consuetum, 421, 519. 

 gemelliparum, 424. 

 hudsoni sp. nov.. 417, 421-23, 509, 

 512. 

 explanation of plate, 542. 

 figure, 422. 

 magister sp. noz'., 422, 423-24, 509, 

 512. 

 explanation of plate, 544. 

 figure, 423. 

 marcoui, 425, 426, 427. 

 montrealense, 424-25, 509, 512, 519. 

 explanation of plate, S46. 

 figure, 425. 

 oppletum, 411, 422. 

 proteiforme, 410, 412, 413. 

 figure, 413. 

 Endoceratida, 404-28, 509. 

 Eurystomites, 483. 

 Estonioceras perforatum, 455. 



