i8 



Index to Desors Synopsis. 



Diademopsis, 79, 430, 433 

 diatretum Cidarites, 73 

 diatretum Pseudodiadema, 73 

 difficile Cyphosoma, 104 

 difficilis Glyphocyphus, 104 

 digitatus Echinodiscus, 238 

 digonus Hemiaster, 376 

 dilatatus Amblypygus, 256 

 dilatatus Brissus, 404 

 dilatatus Clypeaster, 242 

 dilatatum Diadema, 61 (1855), 62 (1856) 

 dilatatus Echinolampas, 302 

 dilatatum Hypodiadema, 61 (1855), 62 



(1856) 



dilatatus Nucleolites, 260 

 dilatatus Pygaster, 165, 166 

 dimidiatus Clypeus, 267 

 dimidiatum Cyphosoma, 90 

 dimidiatus Nucleolites, 267 

 dimidiatum Phymosoma, 90 

 Diplocidaris, 2, 44 

 Diplophorus, 133 

 Diplopodia, 50 (1856), 75, 86 

 Discoidea, 163, 175, 180 

 Discoides, 175 



discoideus Echinolampas, 309 

 disculus Galeropygus, 489 

 disculus Hyboclypus, 193, 489 

 discus Echinolampas, 307 

 distincta Cidaris, 16 

 distinctum Diadema, 77 

 distincta Diplopodia, 77 

 distinctus Echinus, 118 

 distinctus Epiaster, 361 

 distinctus Micraster, 361 

 distinctus Pericosmus, 398 

 distinctus Polycyphus, 118 

 divionensis Pseudopedina, 490 

 dixoni Discoidea, 177 

 dixonianus Echinus, 124 

 djulfensis Schizaster, 391 

 doliolum Cidaris, 15 

 doma Codiopsis, 112, 446, pi. 19 

 doma Echinus, 112 

 dorsalis Collyrites, 489 

 dorsalis Collyrites elliptica, var., 204 

 dorsalis Dysaster, 204 

 dorsalis Echinolampas, 304 

 dorsata Cidaris, 19, pi. 2 

 drogiaca Cidaris, 7, 46 

 drogiacum Diadema, 64, 65 

 drogiaca Desorella, 195 

 drogiacus Holectypus, 172 

 drogiacum Pseudodiadema, 441 

 dubium Coptosoma, 452 

 dubium Diadema, 78 

 dubius Echinus, 120, 452 

 duboisii Conoclypus, 320 

 duboisii Echinobrissus, 270 

 duciei Brissopsis, 379 

 duciei Echinus, 121 

 duciei Psammechinus, 121 

 dumasii Holectypus, 173 

 d'urbani Schizaster, 390 



duvalii Eupatagus, 414 



Dysaster, 192, 195, 198, 199, 201,203,328 



ebrayanus Catopygus, 284 

 Echinanthus, 249, 289, 291, 292, 297, 301 

 Echinarachnius, 230. 23 1 

 echinata Diplopodia, 77 

 Echinites, 317 



Echinobrissus, 249, 257, 258, 263, 273, 

 274, 275, 282, 287 

 Echinocardium, 406, 408 

 Echinocidaris, 112, 113 

 Echinoconus, 163, 179, 180, 181, 249 

 Echinocorys, 329 

 Echinocrinus, 153, 154 

 Echinocyamus, 217, 221 

 Echinodiscus, 221, 230, 238 

 Echinolampas, 197, 24.9, 282, 291, 300, 



318 



Echinometra, 132, 136, 137 

 echinonea Pyrina, 190 

 Echinoneus, 161, 181, 197 

 Echinopsis, 98, 101, 102, 490 

 Echinopygus, 310 

 Echinospatagus, 351 



Echinus, 2, 49 (1856), 50 (1855 & 1856), 

 101,123, 130, 134, 154, 291 

 edmundi Nucleolites, 264 

 edwardseus Pygaster, 165 

 edwardsii Cidaris, 425 

 edwardsii Echinopsis, 100 

 edwardsii Micraster, 396 

 edwardsii Pericosmus, 396, 397, pi. 42 

 elato-depressa Ananchytes conoideavar. 



33i 



elatus Cassidulus, 297 



elata Desorella, 194 



elatus Hemiaster, 382 



elatus Hyboclypus, 194, 195 



elatus Periaster, 382, 389, pi. 42 



elatus Pericosmus, 388 



elatus Pygorhynchus, 297 



elatus Spatangus, 382 



elatus Stigmatopygus, 297 



elegans Acrosalenia, 143 



elegans Botriopygus, 281 



elegans Brissopsis, 399 



elegans Cidaris, 8, 429, pi. 3 



elegans Echinopsis, 99, 100, pi. 16 



elegans Echinus, 99 



elegans Hemibrissus, 400 



elegans marginatus Cidaris, 438 



elegans Palaechinus, 158 



elegans Toxobrissus, 399 



ellipsoi'dalis Echinolampas, 303 



elliptica Amphiope, 236 



ellipticus Ananchytes, 201 



ellipticus Clypeaster, 303 



ellipticus Collyrites, 203, 204, 489, pi. 36 



ellipticus Dysaster, 203 



ellipticus Echinolampas, 303, 305 



ellipticum Laganum, 228 



ellipticus Palaechinus, 158 



elliptica Scutella, 224 



