28 



Index to Desors Synopsis. 



parastatus Hemiaster, 373 

 parastatus Spatangus, 373 

 pareti Spatangus, 422 

 parkinsoni Pseudodiadema, 66 

 parkinsoni Schizaster, 392, 393 

 parkinsoni Spatangus, 392 

 parkinsoni Tripneustes, 132, pi. 18 

 parma Echinarachnius, 231 

 parvulus Catopygus, 191a (1858) 

 parvus Clypeaster, 227, 244 

 parvus Echinus, 454 

 parvus Pericosmus, 398 

 parvus Psammechinus, 454 

 passyanus Hemiaster, 385 

 passyanus Periaster, 385 

 patagonensis Echinus, 130 

 patagonensis Hypechinus, 130, pi. 18 

 patagonensis Scutella, 234 

 patella Acrosalenia, lv 

 patella Clypeus, 276, pi. 35 

 patella Galerites, 276 

 patella Hemicidaris, 62 

 patella Hypodiadema, 62 (1855 & 1856) 

 patella Nucleolites, 276 

 patellaris Echinites, 223 

 patellaris Echinus, 223 

 patellaris Eupatagus, 415 

 patellaris Lenita, 223, 224, pi. 27 

 patellaris Nucleolites, 223 

 patelliformis Cassidulus, 290 

 patelliformis Catopygus, 290 

 patelliformis Pygaster, 166 

 patelloi'des Lenita, 223 

 paucituberculatum Cyphosoma, 90 

 paucituberculatum Phymosoma, 90 

 paumardi Pyrina, 190 (1857), 191 (1858) 

 paulensis Scutella, 233, 234 

 paultrii Clypeopygus, 274 

 paultrii Clypeus, 274 

 pectoralis Plagionotus, 405 

 Pedina, 59 (1856), 100, 490 

 pelagiensis Goniopygus, 95 

 Peltastes, 138, 139, 145, 147, 149 

 peltatus Echinus, 93 

 peltatus Goniopygus, 93, 94, pi. 14 

 peltata Salenia, 93 

 peltiformis Caratomus, 251 

 peltiformis Clypeaster, 251 

 peltiformis Echinites, 251 

 peltiformis Echinus, 469 

 pendulus Hemipatagus, 417 

 pendulus Spatangus, 417 

 pentagonalis Clypeaster, 314 

 pentagonalis Pygurus, 314, 315 

 pentagoniferus Peltastes, 147 

 pentagonifera Salenia, 147 

 pentagona Cidaris, 4 

 pentagonum Diadema, 433 

 pentagona Diplopodia, 433 

 pentagonum Pseudodiadema, 433 

 pentaporus Echinus, 237 

 pentapora Scutella, 237 

 pepo Salmacis, 109 

 perezii Holaster, pi. 38 [vide perrezii] 



perfectum Cyphosoma, 89, 90 

 perfectum Phymosoma, 89, 487 

 perforata Cidaris, 12 

 perforatus Goniopygus, 60 (1856), 430 

 perforata Hemipedina, 60 (1856), 429 



432b 



perforata Salenia, 479 

 Periaster, 382, 389, 395, 396, 397 

 percultus Opechinus, 108 

 Pericosmus, 396 



periqueti Pseudodiadema, 486 (vide per- 



riqueti) 



Perischodomus, 157 

 perlata Cidaris, 14, 438 

 perlatus Echinus, 125, 126 

 perlatus Stomechinus, 125, 126 

 peronii Laganum, 229 

 perplexa Cidaris, 21, pi. 2 

 perplexus Prenaster, 402 

 perrezii Holaster, 336, 337 (vide perezii) 

 perriqueti Diadema, 70 

 perriqueti Pseudodiadema, 70 (vide pe- 

 riqueti) 



personata Cidaris, 150 



personata Salenia, 149, 150, 151 

 perspicillata Amphiope, 236 

 petaliferus Echinus, 149 

 petalifera Salenia, 149, 150, 151, 488, 



pi. 2Q 



petalodes Spatangus, 421 

 petrocoriensis Globator, 187 (1857), 188 



(1858) 



petrocoriensis Pyrina, 187 (1857), 188 



(1858) 



philastarte Cidaris, 6 



philippii Spatangus, 420 



philipsii Cidaris, 32, pi. 5 



phillipsiae Palaechinus, 159 



phillipsii, vide philipsii 



phrynus Hemiaster, 368, pi. 42 



Phymechinus, 133, 136 



Phymosoma, 50 1,1855), 86, 102, 131 



picteti Diadema, 71 



pieteti Pseudodiadema, 71 



pileus, 163, 167 



pileus Pygaster, 167 



pilos Arbacia, 116, 117 



pilos Magnosia, 116 



pilula Ananchytes, 334 



pilula Cardiaster, 334 



pilula Holaster, 334 



pilula Offaster, 334, 342 



pilula Spatangus, 334 



pinguis Collyrites, 205 



pingue Pseudodiadema, 74 



piniforme Pseudodiadema, 447 



pisifera Cidaris, 34 



pistillum Cidaris, 32, pi. 5 



pisum Acrosalenia, 143 



pisum Codechinus, 1 1 1, 487 



pisum Codiopsis, 487, pi. 19 



pisum Discoi'dea, 176 



pisum Hemiaster, 370 



placenta Arachnoides, 230 



