INDEX. 



Acrotreta gemma, 210. 

 Agnostus Americanus, 395, 



" Canadensis, 397. 



" Fabius, 293. 



" Galba, 297. 



" Orion, 397. 

 Amphion Barrandei, 288. 



" Canadensis, 288. 



" convexus, 322. 



" Julius, 290. 



" Insularis, 290. 



" Salteri, 352. 



" Westoni, 321. 

 Amplexus cingulatus, 100. 

 Ampyx Halli, 24. 



" Iseviusculus, 295. 



" normalis, 295. 



" Rutilina, 296. 



" semicostatus, 297. 

 Archeocyathus Atlanticus, 5. 



" Minganensis, 354. 



" profundus, 4. 

 Arionellus cylindricus, 406. 



" subclavatus, 406. 

 Arthroclema pulchella, 54. 

 Asaphus canalis, 270, 352. 



" curiosus, 318. 



" goniurus, 415. 



" Huttoni, 271. 



" Illaenoides, 414. 



" Morrisii, 272. 



" Pelops, 317. 



" quadraticaudatus, 272. 

 Ascoceras Newberryi, 164. 

 Astylospongia parvula, 20. 

 Athyris Anticostiensis, 147. 



" borealis, 147. 



" Headi, 147. 



" Julia, 146. 



" Prinstana, 145. 



" umbonata, 144. 

 Avicula Hermione, 40. 

 Bathyurus amplimarginatus, 352. 



" arcuatus, 205. 



" armatus, 411. 



Bathyurus bituberculatus, 410. 



" breviceps, 262. 



" eaudatus, 261. 



" capax, 409. 



" conicus, 352. 



" Cordai, 259, 412. 



" Cybele, 352. 



" dubius, 410. 



" gregarius, 363. 



" Minganensis, 353. 



" Nero, 260. 



" oblongns, 412. 



" parvulus, 16. 



" perplexus, 364. 



" perspicator, 205. 



" quadratus, 412. 



" Saffordi, 259, 411. 



" senectus, 15. 



" Smithii, 56. 



" solitarius, 362. 



" strenuus, 204. 



" Timon, 261. 



" vetulus, 360. 

 Bathyurellus abruptus, 263. 



" expansus, 318. 



" formosus, 266. 



" fraternus, 267. 



" litoreus, 320. 



" marginatus, 264. 



" nitidus, 265. 



" rarus, 320. 



" ralidus, 268. 

 Bellerophon Palinurus, 311. 



" macer, 347. 

 Beyrichia Atlantica, 300. 

 Calathium affine, 209. 



" Ansledi, 210, 337. 



" Canadense, 377. 



" Fittoni, 211. 



" formosum, 209. 



" pannosum, 335. 



" Paradoxicum, 358. 

 Camerella antiquata, 10. 



" breviplicata, 304. 



" calcifera, 220. 



