476 



ROBERT TRACY JACKSON ON ECHINI. 



Archaeocidaris (co n t in ucd) . 



coloradensis, 237, 258, 267, 274. 



cratis, 237, 258, 272. 



iliniimi, 271. 



dininnii, 237, 258, 271. 



drydenensis, 288. 



edgarensis, 237, 258, 269. 



elegans, 280. 



forbesiana, 238, 257, 259, 280. 



glabrispina, 258, 261. 



gracilis, 237, 258, 267. 



gruneri, 277, 279. 



halliana, 237, 259, 279. 



haUianus, 279. 



harteiana, 408. 



illinoisensis, 258, 266. 



keokuk, 258, 259, 267, 457. 



konincki, 258, 446. 



ladina, 258, 446. 



laeois, 262. 



legrandensis, 256, 258, 260. 



longispina, 237, 258, 261. 



megastyla, 237, 258, 273. 



megastylis, 273. 



megastylus, 273. 



mucronata, 258, 267, 271, 272, 274. 



rtmcronalus, 271. 



muensteriana, 259, 280, 442. 



miinsteriana, 280. 



munsterianus, 280. 



nerei, 258, 262. 



nerii, 262. 



newberryi, 258, 269. 



norwoodi, 258, 270. 



ornata, 258, 267, 271, 274. 



ornatus, 267, 271, 274. 



ourayensis, 237, 258, 274. 



paradoxa, 237, 258, 270. 



pizzulana, 258, 272. 



prisca, 11, 259, 276. 



priscus, 276. 



protei, 262, 263. 



rankini, 11, 259, 276, 449. 



regimontana, 277, 279. 



rossioa, 77, 82, 177, 184, 224, 255, 256, 258, 263, 456. 



rossica var. scheHwieni, 263, 264. 



rossicus, 263. 



scotica, 258, 447. 



selwyni, 238, 258, 447. 



shumardana. 258, 268. 



shumnrdanus, 268. 



shumardi, 268. 



shumardiana, 268. 



shumardina, 268. 



sixi, 258, 447. 



sp., 269, 272, 281, 447, 408, 448, 449. 



sp. a., 272. 



sp. b., 237, 259, 281. 



sp. 6. var., 281, 282. 



Archaeociduris (nniUnucI 



sp. c., 281, 282. 



KI>. d., 281, 282. 



spinoclavata, 237, 250, 281. 



spinodavalus, 281. 



spinosus, 449. 



Ktcllifera, 261, 262. 



tennesseae. HO. 



tirolensis, 258, 456. 



trautscholdi, 258, 448. 



triplex, 237, 258, 274. 



triserata, 275. 



triserialis, 258, 275. 



triserrata, 237, 258, 275. 



triserratus, 275. 



trudifer, 237, 258, 269. 



trudifera, 270. 



urei, 277. 



urii, 82, 256, 257, 259, 276. 



vemeuiliana, 245, 268. 



vetusta, 277, 279. 



vetustus, 277. 



wcrvekei, 259, 276. 



werwekei, 276. 



wortheni, 70, 81, 82, 224, 256, 257, 258, 269, 264, 267. 

 archaica, Bothriocidaris, 28, 34, 42, 45, 48, 52, 53, 54, 

 62, 64, 69, 70, 79, 81, 87, 88, 148, 167, 173, 210, 

 239, 242, 243, 244, 446. 

 aspera, Acrosalenia, 112, 157. 

 Aspidodiadema, 33. 



meijerei, 154. 



nicobaricum, 152, 153, 154. 

 Aspidodiadematidae, 87, 104, 154, 202, 209, 213. 

 Asterias, 52. 



asteriscus, Centrostcphanus, 109, 156. 

 Asterocidaris minor, 103, 154. 

 Asteroidea, 200, 222. 

 Asthenosoma, 62, 81, 168, 179, 186, 195. 



hystrix, 156. 



ijimai, 109, 110, 156. 



owstoni, 156. 

 Astropyga, 56, 74, 109, 110, 174, 189, 202, 213, 214. 



pulvinata, 74, 76, 109, 156. 



radiata, 156. 



atlanticus, Leptechinus, 121. 

 atlanticus, Toxopneustes, 35, 36, 41, 44, 46, 121, 122, 141, 



151, 153, 161, 164, 166, 170. 

 at rut us. Colobocentrotus, 35, 45, 147, 163, 217. 

 Aulodonta, 103, 110, 154, 155, 156, 174, 178, 183, 186, 187, 



202, 209, 212, 214, 220, 221. 

 Austin, Thomas, 236, 449, 450, 454. 

 Austin, Thomas, and Thomas, Jr., 449, 454, 456. 



Baculites, 56. 



baculosa, Phyllacanthus, 99, 101, 102, 148, 150, 152, 153, 



192, 194. 

 Baily, W. H., 10, 89, 262, 303, 306, 307, 308, 309, 310, 



318. 319, 321, 322, 332, 363, 403, 407, 408, 409, 414, 



419. 



