INDEX TO SPECIES AND VARIETIES 



Synonyms are in italics 



abdita (Amphiophiiira), 231 

 abdita {Ophioglypha), 230, 231 

 Abildgaardi (Ophiothrix), 175 

 abbreviatus (Plutonaster), 63 

 abj^ssalis (Echinocucumis), 405 

 abyssalis (Henricia), 118 

 abyssalis (Ophiernus), 228 

 abyssicola [Amphiura), 202 

 abyssicola (Cliiridota), 437 

 abyssicola (Henricia), 118, 120 

 abyssicola (Irpa), 367 

 abyssicola (Ophiacantha), 191,194 

 abyssicola (Ophiactis), 200, 202 

 ahyssicolum (Ophiocten), 247 

 abyssicola (Protankyra), 425 

 abyssicola (Solaster), 111, 112 

 abyssicola [Synapta), 425 

 abyssoruni (Amphiura), 208, 211 

 abj-^ssorum (Cucumaria), 396, 397 

 abyssorum {Ophiaregma), 203 

 acanellce {Opkiolebes), 186 

 acicularis (Astropecten), 57 

 Ackleyi (Zoroaster), 132 

 aculeata (Ophiopholis), 204 

 acutus (Echinus), 297, 300 

 acutus {Goniodiscus), 80 

 acutus {Goniaster), 79 

 adspersus (Ophiernus), 228 

 aequabile {Astrogonium), 86 

 sequabile (Pseudarchaster), 86 

 obquituherculata (Arbacia), 290 

 cequituherculatus (Echinus), 309 

 affinc {Ayikyroderma), 423 

 affinis [Cidaris), 270 

 affinis (Echinus), 297, 305 

 affinis {Ophioglypha), 244 

 affinis (Ophiothamnus), 183 

 affinis (Ophiura), 236, 244 

 affinis (Solaster), 112 

 affinis (Stylocidaris), 270 

 africana (Luidia), 67 

 africanum (Ophiomusium), 252, 



253 

 africanum (Ophiostigma), 208 



Agassizi (Dytaster), 55 

 Agassizi (Gorgonocephalus), 161 

 Agassizi (Pselopatides), 388 

 Alberti (Ophiotrema), 183 

 albicans (Molpadia), 421, 423 

 albicans (Trochostoma), 421 

 albida {Ophioglypha), 239 

 albida (Ophiura), 235, 239 

 albida (Trigonocidaris), 292, 293 

 Alexandri (Echinus), 297, 304 

 alopecurus (Ophiothrix), 174 

 alternata (Oneirophanta), 372 

 alveolatus (Pteraster), 102, 103 

 ambigua (Stichastrella), 136 

 anchora (Euphronides), 375 

 andromeda {Astropecten), 59 

 andromeda (Psilaster), 59 

 anglica (Solaster), 114 

 angularis (Amphiura), 209 

 angulosus (Echinocyamus), 316 

 annectens {Astrogonium), 86 

 annectens (Pseudarchaster), 86 

 annulosa {Ophianoplus), 181 

 annulosa (Ophiopsila), 180, 181, 



182 

 anomala (Ophiacantha), 188, 191 

 antillarum (Diadema), 277 

 antillarum (Plesiodiadema), 277, 



439 

 Antonii (Coronaster), 130 

 Antonii (Hyphalaster), 52 

 aphrodite {Astrogonium), 86 

 aphrodite (Pseudarchaster), 86 

 aranea (Ophiopsila), 180, 182 

 aranciacus (Astropecten), 56 

 arcticus {Astropecten), 66 

 arcticus (Gorgonocephalus), 161 

 arctica {Haplodactyla), 421 

 arcticus (Lepty chaster), 66 

 arctica {Liitkenia), 249 

 arcticus {Magdalenaster), 118 

 arctica (Molpadia), 421, 423 

 arctica (Ophiopleura), 249 

 arcticus (Opliiopus), 203 



461 



