﻿646 



Rutoceras, 518 

 Ryder, 380, 386 



Scaphites, 564, 614 

 larvae formis, 565 

 ventricosus, 565 



Scaphopoda, 392 



Schuchert, 350 



Schroder, 433, 442, 446, 

 463, 468, 520 



Schroederoceras, 458, 474, 

 475- 592, 597, 607 

 angulation, 460, 462 

 Bandonis, 469 

 Casinense, 473, 597 

 Damesi, 469 

 Denckelmanni, 469 

 Eatoni, 468, 470, 484, 



485, 597 

 Eichwaldi, 485 

 Odini, 469 

 rarospira, 467 

 Saemanni, 463, 467 

 teres, 467, 470, 471, 



435 



tubulatum, 464 

 Sciponoceras, 578 



baculoides, 578 

 Sepioidea, 352, 356, 357. 



373. 374, 

 Siphuncle, positions 01^430 

 Solenoceras, 519 

 Solenocheilus, 528, 545 

 caledonicus, 536 

 Springeri, 545 

 Sphyradoceras, 529 

 Spirula, 357 

 Spyroceras crotalum, 360, 



361, 582 

 Stanton, 563, 565, 572,573, 



574, 579- 58o, 614 

 Statogenesis, 386 

 Strombolituites, 509 



Bolli, 510 

 Strophiceras, 518 

 Surroundings, action of, 



377 

 Syncoryne, 398 



Syringoceras, 546 



evolutum, 546 



granulosostriatus, 

 546, 602 



linearis, 546, 602 

 Systrophoceras, 502 



arietinum, 502 



pingue, 502 



rapax, 502 



Table, descriptive terms, 

 428 

 Ontogeny, 391, 397 

 Phylogeny, 397 

 Tachygenesis, 401, 403, 

 404, 406, 407, 411, 415, 

 418, 616 

 Tainoceras, 497 

 Tainoceratidaa, 458, 491 

 Tarphyceras, 433, 441, 

 442, 456, 592, 594, 

 595, 607, 614 

 aucoini, 435, 437 

 calciferus, 456 

 Charaplainense, 435. 



43 6 , 438 

 convolvens, 441 

 extensum, 435, 438 

 Farnsworthi, 435,449 

 Mac Donaldi, 435 

 prematurum, 432,434, 



435, 437 



Seeleyi, 435 

 Tegulum, 392 

 Temnocheilus, 408, 494, 



* 601 



subtuberculatus, 496 

 Thoracoceras, canalicula- 

 tum, 540, 603 



puzosianum, 540, 603 

 Thrincoceras, 544 



Kentuckiense, 544 

 Trachyceras munsteri, 



414 

 Triboloceratidae, 540 

 Triplooceras, 519 



inspiratum, 519 



regulum, 519 



Trochoceras, 502 

 angulatum, 500 

 Davidsoni, 502 

 disjunctum, 500 

 Gebhardi, 503 

 opatum, 500 

 placidum, 500 

 regulum, 519 

 speciosum, 504 

 transiens, 492 

 turbinatum, 503 

 Tropites subullatus, 417 

 Trocholites, 434, 436, 458, 

 460, 466, 471, 472, 



484, 517, 520, 584, 

 585, 596, 614 



ammonius, 484, 487 

 anguiformis, 490 

 arietinum, 502 

 Blakei, 490 

 Canadense, 486, 527, 



587, 596, 605 

 circularis, 484, 489 

 contractus, 489 

 Damesi, 469, 489 

 depressus, 489 

 dyeri, 489 

 hospes, 488 

 incongruus, 488 

 internastriata, 484 

 macromphalus, 489 

 macrostoma, 489 

 minusculus, 490 

 multicostatus, 502 

 orbis, 489 

 pingue, 502 

 planorbiformis, 490 

 rapax, 502 

 Remelei, 484, 489 

 scoticus, 491 

 soraviensis, 489 



Trocholitoceras, 458, 478, 

 480, 596 

 Eichwaldi, 484 

 Walcotti, 476, 480, 



485, 607 

 Turrilites, 566 



Boblayei, 567 

 Coynarti, 567 



