718 



Paleontological Ixdhx 



Schizophoria, 170. 

 Schizoporia carinata, 570. 

 impressa, 170, 510. 

 iowensis, 170. 



striatula, 85, 105, 170, 358, 424, 420, 

 427, 440, 447, 453, 455, 45G, 400. 

 461, 462, 403, 470, 493, 494, 496, 

 510, 519, 520, 572. 

 striatula var. marylandica, 393, 304, 

 395, 397, 440, 494, 525, 526, ."74. 

 tioga, 560. 

 Schuchertella, 144, 559. 

 Scbuchertella cliemungensis, 307, 379. 

 387, 395, 397, 439, 480, 490, 491, 494, 

 495, 496, 497, 513, 520, 525, 526, 527, 

 559, 560. 



chemungcnsis var. perversa, 145. 

 elliptica, 439, 560. 

 cf. perversa, 144. 

 ( ?) ponderosa, 439, 447, 560. 

 sp., 66, 73, 7J, 78, 82. 

 variabilis, 65, 71, 86, 91, 105, 144. 

 Solemyacidie, lil4. 

 Solenacea, 379. 

 Solenida;, 279. 

 Solpnopsid.ie, 315. 

 Sphaerodoma hamiltonia;, 289. 

 Sphenotus, 610. 



Sphenotus contractus, 359, 361. 362, 373, 

 374, 393, 441, 610. 

 sp., 441. 



Spirifcracea, 183, 586. 

 Spirifer, 593. 

 Spirifer acuminata, 193. 



acuminatus, 31, 86, 106, 193. 



angusta, 106. 



angustus, 62, 68, 74, 86, 106, 196. 



asper, 598. 



audacula, 192. 



audaculus, 66, 68, 74, 77, 82, 83, 86, 



106, 193, 195, 197. 

 cf. consobrinus, 106, 198, 199. 

 cultrijugalus, 31. 

 dactylus, 600. 



(Delthyris) consobriuus. 198. 

 (Deltbyris) mesacostalis, 440. 448, 

 452, 455, 459, 472, 480, 481, 487, 

 490, 491, 402, 493, 497, 498, 499, 

 500, 502, 503, 505, 508, 509, 510, 

 511, 513, 514, 515, 517, 519. 520, 

 525, 526, 527, 528, OOl. 

 disjunctus, 344, 348. 349, 350, 353, 

 3.50. 361, 364, .S65. .367, 368, 373, 

 374, 378, 379, 381, 386, 387. .388, 

 392, 303, 394, 395, 397, 398. 418, 

 421, 431, 440, 446, 447, 459, 469, 

 472. 480, 484, 490, 492, 494, 405, 

 408. 499, 506. 508, 509, 510, 513. 

 514. 520. 524, 525, 526, 586, 593. 



granulifera, 190. 



granulosus, 51, 62, 65. 66. 67, 68, 



72. 75, 76, 77, 82, 83, 86, 102, 106, 



190, 193. 

 lajvis, 592. 

 marcyi var. superstes, 358, 361, 362, 



367, 415, 417, 420, 427, 428, 432, 

 440. 480, 492, 408, 500, 502, 506, 

 507, 510, 515, 516, 517, 518, 519, 

 528, 597. 



medialis, 192. 



mesastrialis, 355, 356, 350, 362, 367, 



368, 378, 424, 427, 440. 446, 447, 

 448, 453, 454. 455, 458, 459, 480, 

 491, 492, 496. 497, 498, 499, 502, 

 513, 520, 596. 



mesacostalis, 346, 360, 365, 367, 368, 



369, 374, 415, 416, 417, 426, 427, 

 428, 432, 440, 447, 448, 601. 



mucronata, 187. 



mucronatus, 26, 43. 45, 51, 56, 61, 

 62, 64, 65, 60, 67. 68, 71, 72, 73, 

 74, 7.5, 76. 77. 78, 79, 81, 82, 83, 

 86, 102. 106, 187, 191, 193, 601. 

 mucronatus var. posterus, 357, 358, 

 371, 424, 426. 440. 449. 450, 453, 

 454, 455, 456. 457, 460, 461, 462, 

 463, 468, 470, 473, 481, 493, 494, 

 502, 599. 

 permatus, 187. 



permatus var. posterus, 426. 

 (Reticularia) fimbriatus, 60, 68, 91, 



100, 197. 

 sculptilis, 190. 

 sculptilis var. marylandensis. 74, 



106, 300. 

 sp., 526. 

 tuUia, 105. 



tuUius. 72, 82, 106. 195. 

 Spirifera augusta, 106. 

 conradana. 197. 

 consobrina. 198. 

 granulifera. 43. 

 pennata. 187. 

 spiriforoides, 211. 

 ziczac. 198. 

 Spiriferida>. 185, 591. 

 Spirophyton velum, 83. 



sp.. 62. 451. 

 Spirorbis. 544. 

 Spirorbis angulatus. 545. 

 gyrus. 359. 430. 544. 

 sp., 430. 502, .545. 

 Spyroceras. 314. 

 Spyroceras clarkei, SO, lOS. 317. 



crotalum. 77. 80, 108. 314, 317. 

 geneva, 317. 



nuntium, 67, 104, lOS, 316. 

 Stenochisma prolifica, 173. 



