Trivial and Generic Names. 



27 



oblongus Spatangus, 355 

 oblongus Toxaster (Heteraster),349, 35 1, 

 355, 356, 357, pi. 40, et errore Toxastus, 



72 



oblongus Trematopygus, 262 

 obovatus Botriopygus, 248, 279, 280 

 obovatus Catopygus, 279 

 obovatus Nucleolites, 279 

 obovatus Pygorhynchus, 279 

 obovatus Pygurus, 279 

 obovata Scutellina, 224 

 obtusus Echinocyamus, 220 

 obtusus Catopygus, 285 

 occitanus Echinocyamus, 225 

 occitana Scutella, 225 

 occitana Sismondia, 225, 227 

 occulata Cidaris, 8, 437 

 ocellatus Spatangus, 422 

 Offaster, 329,. 333, 336 

 olfersii Echinobrissus, 272, 273, pi. 30 

 olfersii Nucleolites, 272 

 olfersii Trematopygus, 272 

 oliva Cidaris, 447 

 omalii Spatangus, 416 

 Oolopygus, 286 

 Opechinus, 107 

 oppelli Rhabdocidaris, 438 

 orbiculare Laganum, 228 

 orbicularis Caratomus, 250 

 orbicularis Clypeus, 265 

 orbicularis Echinobrissus, 265 

 orbicularis Echinoconus, 466 

 orbicularis Echinodiscus, 228 

 orbicularis Hemiaster, 385 

 orbicularis Nucleolites, 188a (1858), 189 



(1857), 265 

 orbiculatus Echinanthites, 311, 316 

 orbiculatus Pygurus, 315, 489 

 orbignyana Cidaris, 20, 39, 40 

 orbignyanus Clypeopygus, 434 

 orbignyana Collyrites, 205 

 orbignyana Desorella, 194, pi. 26 

 orbignyana Uesoria, 194 

 orbignyanum Diadema, 68 

 orbignyanus Echinobrissus, 434 

 orbignyanus Echinus, 129 

 orbignyanus Galerites, 185 

 orbignyana Gualtieria, 406, pi. 42 

 orbignyanus Hemiaster, 377, 383 

 orbignyanum Pseudodiadema, 68 

 orbignyanus Pygurus, 310 

 orbignyana Pyrina, 185 

 orbignyana Rhabdocidaris, 40, 48 



(1856), 437, 442a, pis. 1 & 8 

 orbignyanus Stomechinus, 129 

 ormoisianus Holectypus, 170, 171 

 ornatissimum Cyphosoma, 87 

 ornata Cidaris, 435 

 ornatus Cidarites, 72 

 ornatus Clypeus, 165 

 ornatum Diadema, 70, 72 

 ornatus Eupatagus, 413, 414, 41 5, pi. 44 

 ornata Pedina, 101 

 ornatum Pseudodiadema, 72 



ornatus Spatangus, 413 

 orobus Cidaris, 29, pi. 4 

 orthonotus Spatangus, 408 

 osiris Conoclypus, 321 

 ostervaldi Clypeus, 277, 278 

 ovalis Cassidulus, 290 

 ovalis Clypeaster, 305 

 ovalis Collyrites ringens var., 207 

 ovalis Dyaster, 204, 205 

 ovalis Echinolampas, 305 

 ovalis Galerites, 305 

 ovalis Hyboclypus, 431 

 ovalis Pyrina, 191 (1858) 

 ovalis Spatangites, 203, 206 

 ovalis Spatangus, 204 

 ovata Ananchytes, 330, 332, pi. 38 

 ovatus Botriopygus, 255, 280, pi. 31 

 ovata Brissopsis, 380 

 ovata Cidaris, 14, 449, 484 

 ovatus Conoclypus, 322 

 ovatus Echinanthus. 301 

 ovatus Echinocorys, 466 

 ovatus Echinocorytes, 330 

 ovatus Echinocyamus, 218 

 ovatus Echinolampas, 301 

 ovata Echinolampas, 322 

 ovatus Echinoneus, 218 

 ovatus Echinus, 330 

 ovatus Galerites, 322 

 ovatus Pygaulus, 253 

 ovata Pyrina, 190 

 ovatus Schizaster, 380 

 ovatus Spatangus, 403 

 ovifera Cidaris, 20, 30, 51, 484, pi. 4 

 ovifera Hemicidaris, 30 

 oviformis Clypeaster, 304, 308, 311 

 oviformis Clypeopygus, 271 

 oviformis Echinobrissus, 271 

 oviformis Echinocyamus, 219 

 oviformis Echinolampas, 308 

 oviformis foss. Echinoneus, 308 

 oviformis Nucleolites, 271 

 oviformis Pygurus, 311 

 ovulum Catopygus, 285 

 ovulum Collyrites, 203, 209, 210 

 ovulum Dysaster, 209 

 ovulum Nucleolites, 190, 283 

 ovulum Pyrina, 190 (1857-58), 191 



(1858), pi. 26 



ovum Conoclypus, 323 

 ovum Echinolampas, 323 

 ovum Galerites, 323 



PachyclypuS; 163, 195, 196 

 Palaechinus, 157 

 Palaeocidaris, 48 (1855), 153, 154 

 papillata Cidaris, 459 

 papillosus Echinocorys, 332 

 papillosa Galeola, 332 

 paradoxus Echinus, 208 

 parallelus Echinobrissus, 259 

 parallelus Nucleolites, 259 

 parandieri Cidaris, 5, 6, 26, 438, pi. 3 

 paraplesius Nucleolites, 267 



