6y6 



NORTH AMERICAN INDEX FOSSILS. 



393. Trematospira camura, L, b 195. 



397. Whitfieldella cylindrica, Li, a, b 196. 



398. W. intermedia, L, b 209. 



399. W. nitida, L, a, b, d 22^. 



400. W. nucleolata, TJ, b, c, e 224. 



401. W. sulcata, U, b 226. 



402. Hyattella congesta, L, b, d 231. 



403. Nucleospira pisiformis, L, b, d, f 234. 



405. Anoplotheca hemispherica, L, a, 272. 



b, c, d 272,. 



406. A. plicatula, L, b, e 274. 

 410. Meristina maria, L, d, e 657. 



Poleumita scamnata, L, b 

 P. crenulata, L, b 

 Pycnomphalus solarioides, L, b 

 Holopea antiqua, TJ, b, c, e 

 H. pervetusta, TJ, b, c, e 

 Strophostylus cyclostomus, TJ, e 

 Diaphorostoma niagarense, L, b 

 Platyceras niagarense, IJ, b 

 Acanthonema holopiforme, TJ, e 

 A. laxtim, TJ, e 

 A. newberryi, TJ, e 

 Hercynella canadensis, TJ, e 



Pelecypoda. 



13. Ilionia galtensis, L, TJ, b 



14. I. sinuata, TJ, b 



46. Panenka canadensis, TJ, e 



67. Ctenodonta machaeriformis, L, b 



68. C. equilatera, TJ, b 



124. Cyrtodonta undulostriata, L, b 



125. C. canadensis, L, b, e 



127. Megambonia aviculoidea, TJ, b, c 



153. Pterinea emacerata, L, TJ, b, c 



154. P. striaecosta, L, d, e 



155. P. lanii, TJ, e 



*i56. P. securiformis, TJ, b 



167. Leiopteria subplana, L, TJ, b 

 20 1 a. Conocardium monroicum, TJ, e 



410. Modiolopsis orthonota, L, b 



411. M. primigenia, IJ, b 



412. M. dubia, TJ, b 



426. Goniophora dubia, TJ, b, e 

 483. Cypricardinia arata, L, e, f, h 



Gastropoda. 

 ZZ- Bucaniella trilobata, L, b, c 

 43. Trematonotus alpheus, L, b, e 

 54. Bellerophon exiguus, L, d 

 86. Euomphalopterus Valerius, L, TJ, 

 b, e 

 E. elora, L, b 



Lophospira bispiralis, L, TJ, b, e 

 III. Phanerotrema occidens, L, e 

 125. Euconia pervetusta, L, b 

 Eotomaria areyi, L, TJ, b, e 

 E. galtensis, L, TJ, b, e 

 Hormotoma subcarinata, TJ, e 

 154. Coelidium macrospira, L, b, e 

 157. Solenospira minuta, TJ, b, e 



87. 

 107. 



129. 

 130. 

 149. 



CONULARIDA. 



25. Tentaculites gyracanthus, TJ, b, c 

 31. Conularia niagarensis, L, b 



Cephalopoda. 



21. Orthoceras simulator, L, d 



22. O. rectum, L, b, e 



44. Dawsonoceras annulatum, L, e 

 44a. var. americanum, L, TJ, e 



45. Protokionoceras medullare, L, e 



46. P. crebescens, L, b, e 



47. P. trusitum, L, TJ, b, e 



49. Kionoceras angulatum, L, e 



50. K. orus, li, e 



51. K. darwini, L, b 



72. Discoceras graftonense, X, e 



73. D. marshii, L, d 



76. Plectoceras bickmoreanum, L, d 



77. Sphyradoceras desplainense, L, b, e 



78. S. costatum, L, b, e 



80. Mitroceras gebhardi, TJ, b 



84. Halloceras hercules, L, e 



159. Mselonoceras arcticameratum, L, 

 b, e 



161. Cyclostomiceras orodes, L, TJ, b, e 



162. C. brevicorne, L, b, e 

 170. Oncoceras orcas, L, e 



175. Poterioceras sauridens, L, TJ, b, e 



185. Trimeroceras gilberti, IJ, e 



186. Hexameroceras herzeri, L, e 



187. H. cacibiforme, L, e 



188. Septameroceras septoris, L, e 



189. Phragmoceras nestor, L, e 



190. P. parvum, L, d, e 



191. P. angustum, L, e 



192. P. ellipticum, L, e 



