480 



ROBERT TRACY JACKSON ON ECHINI. 



Echinothuriidae, 17, 30, 63, 64, 74, 76, 83, 109, 110, 156, 

 168, 177, 185, 189, 202, 209, 212, 213, 214, 286, 287, 

 413,414, 415, 433. 

 Echinus, 18, 19, 27, 56, 65, 71, 87, 90, 117, 118, 120, 125, 

 174, 176, 179, 187, 276, 450. 



acutus, 118, 139, 160. 



affinis, 117, 118, 139, 150, 153, 160, 171, 216. 



angulosus, 119, 151, 153, 160, 164. 



cidaris, 96. 



drydenensis, 288. 



elegans, 118, 160. 



esculentus, 27, 35, 44, 117, 118, 119, 148, 151, 153, 

 160. 



gracilis, 118, 160. 



koenigii, 450. 



inagellanicu.s, 35, 40, 43, 84, 119, 120, 125, 148, 151, 

 153, 160, 164. 



margaritaeeus, 119, 160, 164. 



melo, 118, 160. 



microtuberculatus, 118, 160, 164, 210. 



miliaris, 118, 160. 



neumayeri, 119. 



verruculatus, 120. 

 Ectobranchiata, 208. 

 Ectobraiifhiates, 86. 



edgarensis, Archaeocidaris, 237, 258, 269. 

 Eichwald, Edouard von, 243, 244, 270, 365, 453. 

 eifelianus, Lepidocentrus, 236, 2S7, 291. 

 elegans, Archaeocidaris, 280. 



Cidaris, 280. 

 elefjans, Erhinus, lie's, 160. 

 elegans, Meekechinus, 12, 28, 34, 61, 89, 172, 174, 234, 



238, 265, 374, 417, 425, 430, 443. 

 elegans, Palaechinus, 308, 332. 

 elegan.s, Palaeechinus, 54, 59, 89, 229, 230, 231, 303, 305, 



308, 403, 414, 420. 

 elegans, Rhoechinus, 303, 308, 314. 

 ellipticus, Echinocrinus, 307. 



Maccoija, 307, 326. 



Palaechinus, 305, 307, 326, 329. 

 ellipticus, Palaeechinus, 31, 303, 305, 306, 307, 308, 326, 



329. 

 ellipticus, Palaeocidaris, 307. 



Palechinus, 307, 326. 

 Eooidaris, 206, 209, 223, 245, 254, 261, 265, 454. 



acuaria, 441. 



blairi, 260, 261. 



drydenensis, 288. 



forbesiana, 280. 



forbesianus, 280. 



hallanus, 279. 



halliana, 279. 



hallianus, 279. 



kaiserlingi, 245, 246. 



keyserlingi, 246. 



konincki, 446. 



laevispina, 223, 236, 265. 



munslerianus, 280. 



munsteri, 280. 



Eocidaris {continued). 



munslerianus, 280. 



rossica, 263. 



rossicus, 263. 



scrohiculala, 255. 



squamosa, 282. 



squamosus, 282. 



verneuiliana, 246, 247. 



verneuilianus, 246. 



vemeuilli, 246. 

 Eotiaris, 245. 



keyserlingi, 246. 

 Eriechinus, 303, 311, 312, 326. 



sphaericus, 317, 326. 

 esculentus, Echinus, 27, .35, 44, 117, 118, 119, 148, 151, 

 153, 160. 



Tripneustes, 35, 44, 46, 48, 91, 93, 123, 124, 125, 141, 

 151, 153, 161, 164, 167, 168, 169, 18.5, 187. 

 Etheridge, Robert, Jr., 447, 448. 

 etheridgei, Melonechinus, 385. 

 etheridgii, Melonechinus, 364, 384, 385. 

 etheridgii, Melonites, 385. 



Eucidaris, 53, 54, 58, 63, 70, 76, 77, 82, 85, 86, 87, 88, 96, 

 183, 190, 192, 241, 293, 297, 372. 



metularia, 97, 100. 



thouarsi, 62, 97, 100, 



tribuloides, 35, 45, 54, 58, 61, 62, 70, 75, 81, 82, 92, 

 96, 97, 98, 99, 100, 102, 146, 1.52, 153, 167, 171, 

 174, 182, 184, 191, 192, 248, 249, 445, 

 Euechinoida, 211, 234. 

 eurythrogrammus, Strongylocentrotus, 35, 44, 141, 144, 



162. 

 Evechinus chloroticus, 125, 161, 164, 

 exilis, Bothriocidaris, 453. 

 exihs, Palaeocidaris, 453. 

 Exocycloida, 85, 87, 92, 177, 200, 201, 204, 20S, 209, 211, 



217, 218, 220. 

 extremis, Lepidesthes, 12, 237, 416, 418, 421, 430, 443, 



Fabia chilcnsis, 145, 



ferox, Palaeodiscus, 222, 236, 250. 



flavescens, Echinocardiuni, 81. 



floridanus, Coeloplcui-us, 116, 158. 



florigemma, Cidaris, 95. 



Forbes, Edward, 316. 



forbesi, Lovenia, 72. 



forbesi, Permocidaris, 280. 



forbesiana, .\rchaeocidaris, 238, 257, 259, 280. 



forbesiana, Cidaris, 280. 



Eocidaris, 280, 



Permocidaris, 280. 

 forbesianus, Eocidaris, 280. 

 formosa, Lepidesthes, 28, 34, 89, 172, 174, 234, 394, 415, 



418, 423, 426, 427. 

 formosus, Amblypneustes, 31, 159. 

 formosus, Lepidesthes, 418. 

 fragilis, Brisaster, 177. 

 frngitis, (Schiznslcr), 177. 

 fragilis, Strongylocentrotus, 128, 151, 153, 162. 



