INDEX 



Plate illustrations are in bold face 



abyssicola, Stomachetosella, 306, 309, 



536 

 acutirostris, Porella, 393, 394, 560 

 Adeona, 441 



grisea, 441 



plagiopora, 441 



tubulifera, 442, 584 



violacea, 441, 442, 584 

 Adeonidae, 441 



admiranda, Lagenipora, 485, 491, 592 

 adpressa, Hippopodinella, 467, 468, 582 



Lepralia, 467 

 Aimulosia, 343, 352, 354 



australis, 352 



palliolata, 353,552 



uvulifera, 352, 558 

 alaskensis, Parasmittina, 412, 419, 564 

 alata, Lepralia, 300 

 albirostris, Discopora, 497 



Holoporella, 495,497, 590 

 altimuralis, Emballotheca, 324, 542 

 altirostris, Smittina, 399, 405, 562 

 alulata, Phylactella, 483, 586 

 alvareziana, Escharina, 300 



Mucronella, 300, 301 



Smittia, 300 



Umbonula, 300, 540 

 Alysidota labrosa, 481 

 Alysidotella, 481 

 americana, Hippodiplosia, 339, 548 



Lepralia, 339 

 ampla, Hippoporina, 344, 347, 550 

 Anasca, 271 

 anatina, Codonella, 422, 423 



Codonellina, 422, 423, 560 



Osthimosia, 493 



Schizraopora, 493, 592 

 anatina ligulata, Codonellina, 423 

 Anexechona, 284 

 aperta, Phylactella, 482, 586 

 apertura, Dakaria, 325, 326, 546 

 Arachnopusia, 284 

 (Arborella) dichotoma, Tetraplaria, 



466 

 arctica, Discopora, 299 



Lepralia, 299 



Smittia, 402 



Smittina, 400, 402, 562 



Umbonula, 299, 540 

 areolata, Lepralia, 474 



Schizoporella, 474, 475 

 Arthropoma, 316, 333 



cecili, 333, 334, 544 



cecilii, 333 



circinata, 334, 544 

 Ascophora, 271 

 atrofusca, Lepralia, 472 

 atrofusca var. labiosa, Lepralia, 473 



Schizoporella, 472 

 auriculata, Lepralia, 330, 331 



Schizomavella, 331, 332, 544 



Schizoporella, 331 

 auriculata acuta, Schizomavella, 332, 



544 

 auriculata ochracea, Schizomavella, 



331,544 

 auriculata var. ochracea, 



Schizomavella, 331, 332 



Schizoporella, 331 

 auriculata subsp. ochracea, 



Schizoporella, 331 

 australis, Aimulosia, 352 



Tetraplaria, 466 

 aviculifera, Cysticella, 395, 396 



Gemelliporella, 360, 578 

 bella, Lepralia, 403 



Smittina, 391, 399, 403, 562 

 biaperta, Eschara, 367, 368 



Hippothoa, 368 



Lepralia, 367, 368 



Schizopodrella, 320, 367 



Schizoporella, 320, 368 



Stephanellosa, 368 



Stephanosella, 320, 321, 322, 368, 

 370, 552 

 biaperta var. cornuta, Schizoporella, 



321 

 bicornis, Cystisella, 435, 570 

 bilabiata, Eurystomella, 389, 584 



Lepralia, 389 



Reteporellina, 445, 574 

 bilaminata, Cellepora, 427 



Discopora, 427 



Rhamphostomella, 425, 427, 428, 

 572 

 biserialis, Dakaria, 325, 329, 546 



Schizoporella, 329 

 bispina, Lepraliella, 453, 547 



Porella, 453 

 bispinosa, Lepralia, 454, 455 



Rhynchopora, 455 



Rhynchozoon, 455 

 bispinosum, Rhynchozoon, 454, 455, 456, 



461, 576, 578 



[599] 



