INDEX TO CLASSES, ORDERS, FAMILIES, 

 GENERA AND SUBGENERA, 



INCLUDING ALSO THE ENGLISH AND POPULAR NAMES 



Synoyiyms are in italics 



Acanthotrochus, 437, 438 

 Aceste, 321 

 Acrocnida, 208, 217 

 Aerope, 321 

 Aeropsidse, 321 

 Aeropsis, 321 

 Albatrossaster, 51 

 Allantis, 379 

 Amphiactis, 198, 222 

 Amphidetus, 330 

 Amphilepid^, 165, 222 

 Amphilepis, 222 

 Amphiocnida, 218 

 Amphiodia, 217 

 Amphiophiura, 228, 230 

 Amphipholis, 208, 220 

 Amphisternata, 319 

 Amphiura, 198, 208 

 Amphiurid^e, 165, 206 

 Ananchytes, 9 

 Ankyroderma, 421 

 Annacrinus, 15 

 Anseropoda, 99 

 Antedon, 26, 27 

 Antedonidse, 16, 25 

 Antedoninae, 26, 27 

 Apoda, 359, 423 

 Arachnoides, 315 

 Arseosoma, 279, 281 

 Arbacia, 290 

 Arbaciella, 290 

 Arbaciidse, 288, 290 

 Arbacina, 292 

 Ar chaster, 87 

 Archegonaster, 49 

 Aspidochirota, 358, 377 

 Aspidodiadema, 277 

 Aspidodiadematidae, 278 

 Aspidophiura, 228, 229 



Asteracanthion, 139 

 Asterias, 139 

 Asteriidae, 122, 138 

 Asterina, 98 

 Asterinidae, 95, 98 

 Asteriscus, 98 

 Asteroidea, 10, 41 

 Asteroids, 10, 41 

 Asteronychidae, 157 

 Asteronyx, 158 

 Asteropidse, 89 

 Asteropsis, 90 

 Asterozoa, 9 

 Asthenosoma, 282 

 Astrella, 69 

 Astrodia, 158 

 Astrogeron, 167 

 Astrogonium, 86 

 Astropecten, 55, 56 

 Astropectinidae, 51, 54 

 Astrophiurae, 155, 156 

 Astroschema, 157 

 Astroschematidae, 157 

 Astrospartus, 160 

 Atelecrinidae, 16, 22 

 Atelecrinus, 22 

 Aulodonta, 276 



Bathybiaster, 56, 60 

 Bathycrinidae, 16, 17 

 Bathycrinus, 17, 18 

 Bathymetrinae, 26, 37 

 Bathypectinura, 226 

 Bathyplotes, 378, 383 

 Beche de mer, 9 

 Benthodytes, 373 

 Benthogone, 360, 363 

 Benthopecten, 71, 73 

 I Benthopectinidae, 71 



455 



