INDEX 



Illustrations are in bold face type 



acanthophora, Porcellana, 43, 44, 45 

 acanthophorus, Petrolisthes, 8, 43, 45 

 ackleianus, Pachycheles, 143, 144 

 Aeglea, 10 

 affinis, Petrolisthes, 67, 69 



Porcellana, 66, 68, 69, 81, 83 

 agassizi, Petrolisthes, 32 

 agassizii, Petrolisthes, 24, 32, 33, 36, 



257, 389 

 albus, Loxechinus, 20, 348 



Pagurus, 202, 348 

 AUopetrolisthes, 8, 12, 22, 178 



angulosus, 179, 180, 181, 330, 419 



punctatus, 179, 180, 181, 182, 184, 

 419 



spinifrons, 179, 181, 185, 331, 346, 

 347, 419 

 amoenus, Petrolisthes, 22, 39, 41, 50 

 Amphipholis platydisca, 196, 347 

 angulosa, Porcellana, 178, 180 

 angulosus, AUopetrolisthes, 179, 180, 



181, 330,419 



Petrolisthes, 8, 180, 182 

 angusta, Porcellana, 193 

 angustifrons, Neopisosoma, 124, 131 



Pisosoma, 8 

 angustus, Minyocerus, 195, 196 

 aphrodita, Pisosoma, 144, 145, 147 

 armata, Porcellana, 50 

 armatus, Petrolistes, 51 



Petrolisthes, 25, 50, 52, 53, 54, 55, 

 57, 59, 269, 387 



Ptrolisthes, 51 



var. pallidus, Petrolisthes, 51 

 artifrons, Petrolisthes, 8, 27, 117, 119, 



121, 306, 363, 393 

 asiaticus, Petrolisthes, 22, 51, 54 



lamarcki var., 51, 54 

 Asteracanthion helianthus, 20 

 Astrocaneum spinosum, 206, 347 

 aurantiacus, Stichaster, 20 

 austrinus, Petrolisthes lewisi, 8, 115, 116, 



117, 121, 220, 305, 359, 395 

 balssi, Pachycheles, 164 

 barbatus, Pachycheles, 154 

 bellus, Pachycheles, 175 

 bicapillatum, Neopisosoma, 8, 123, 124, 



126, 127, 309, 365, 409 

 biocellatus, Pachycheles, 8, 134, 144, 146, 



147, 314, 346,413 



Petrolisthes (Pisosoma), 144, 146 

 bluteli, Pisidia, 209 

 boscii, Petrolisthes, 36 



Porcellana, 36, 37 



brachycarpus, Petrolistes gracilis var., 



106 



Petrolisthes, 8, 9, 29, 106, 107, 109, 

 300, 407 

 gracilis var., 8 

 brasiliensis, Petrolisthes, 37 

 cabrilloa, Petrolisthes, 88 

 cabrilloi, Petrolisthes, 28, 88, 90, 93, 289, 



401 

 calculosus, Pachycheles, 8, 134, 136, 138, 



312, 369,411 

 californiensis, Petrochirus, 202, 204, 348 

 Cancer platy-cheles, 196 

 cancrisocialis, Porcellana, 8, 197, 198, 



_ 199, 200, 202, 203, 334, 348, 425 

 carinata, Porcellana, 180 

 Centrostephanus, 122, 348 

 cessacii, Petrolisthes, 22, 50 

 chacei, Pachycheles, 134, 135, 136, 311, 



411 

 Chaetopterus, 238, 348 



variopedatus, 348 

 Chetopterus variopedatus, 238 

 cinctipes, Petrolisthes, 29, 74, 85, 87, 88, 



90, 91, 93, 104, 105, 292, 405 



Porcellana, 90, 93 

 Clastoteoechus, 8, 11, 22, 175 



diffractus, 176, 177, 178, 409 



nodosus, 177, 178 



vanderhorsti, 177, 178 

 clathrata, Luidia, 195 

 coccineus, Petrolisthes, 22 

 cocoensis, Petrolisthes, 8, 27, 117, 118, 



120, 361, 393 

 Columbia, Luidia, 195, 347 

 confinis, Polyonyx, 8, 233, 234, 234, 349, 



383 

 corbicola, Porcellana, 8, 197, 205, 206, 



347, 349, 379 

 crassa, Porcellana (Pachycheles), 141 

 crassus, Pachycheles, 8, 134, 141, 142, 



143, 144,411 

 crenulatus, Petrolisthes, 8, 24, 27, 110, 



111, 113, 120, 301, 395 

 Crepidula nivea, 204 

 crinimanus, Pachycheles, 8, 133, 164, 



166, 167, 322, 377, 417 

 cristata, Porcellana, 183, 184 

 curacaoense, Neopisosoma, 124, 126, 127 



Pisosoma, 8 

 danae, Petrolisthes, 37 



Porcellana, 36 

 Dardanus sinistripes, 202, 348 

 decacanthus, Petrolisthes, 22 



433 



