INDEX 



515 



Aspidoceras, 399 



Assiminea, 415 



Astarte, 451 



Asthenothaerus, 459 



Astraliu7n, 409 



Athoi'acophorus, 443 — see Janella 



Athyris, 499, 500, 505 ; stratigraphical 



distribution, 507, 508 

 Atilia, 423 



Atlanta, 421, 432; foot, 200 

 Atopocochlis, 330, 441 

 Atremata, 511 



Atretia, distribution, 486, 487 

 Atrypa, 501, 502, 505 ; stratigraphical 



distribution, 507, 508 

 Atrypidae, 501, 505, 508 

 Aturia, 393, 395 

 Atys, 428, 430 



Aucapitaine, H., on tenacity of life, 38 

 Aucella, 449 

 Auloponia, 157, 304, 414; operculum, 



269 

 Aulosteges, 504 ; stratigraphical distri- 

 bution, 507 

 Auricula, 439, 439 

 Auriculella, 327, 443 

 Auriculidae, 17, 18, 260, 439, 439; 



lung, 160 ; eyes, 186 ; radula, 235 

 Austenia, 301, 304, 440 

 Avellana, 430 

 Avicula, 254, 258, 449, 449 ; eyes, 190 ; 



genital orifice, 242 ; A. margaritifera, 



100 

 Aviculopecten, 450 

 Aviculopinna, 449 

 Axinus, 452 

 Azeca, 442 

 Azygobranchiata, 155, 407 



Babinka, 447 



Bactrites, 395 



Baculites, 399 



Baikalia, 290, 415 



Baird, Mr., on the British Museum 



snail, 37 

 Balea, 442 ; B. perversa, 24, 41 

 Baltic, fauna of the, 12, 83, 366 

 Bankivia, 4O8 

 Barbatia, 448 

 Barleeia, 415 

 Barnacle, Rev. H. G., on musical 



sounds, produced by Mollusca, 51 

 Barometers, snails as, 50 

 Bartlettia, 452 

 Basilissa, 376, 4O8 

 Basommatophora, 11, 19, 181, 438 

 Basterotia, 451 

 Bateson, W., on variation in Cardium, 



91 ; on hearing in Anomia, 196 

 Bathmoceras, 395 

 Bathydoris, 433 

 Bathyteuthis, 390 



Batissa, 320, 453 



Beddomea, 304 



Beecher on phylogeny, 509 



Beetles, prey on Mollusca, 58 



Bela, 426 ; radula, 219 



Belemiiites, 380 



Belemnitidae, 387 



Belemnosepia, 390 



Bellerophon, 266, 407 



Belopetra, 380 



Belopteridae, 388 



Belosepia, 386, 388 



Beloteuthis, 390 



Bemhix, 376, 4O8 



Benedictia, 290, 415 



Benthohia, 377 



Benthodolium, 377 



Berendtia, 441 



Beudant, experiments on Mollusca, 12 



Bideford Bridge and mussels, 117 



Binney, Dr., on epiphragm, 28 



Binneya, 341, 441 



Biradiolites, 456 



Birds, devour Mollusca, 56 f . 



Bithynella, 289, 293, 415 



Bithynia, 336, 342, 415 ; stomach, 239 ; 

 habitat, 25 



Bittium, 4I6 



Blaesospira, 346, 351 



Blandiella, 16, 4^4 



Blanfordia, 4^4 



Blind Mollusca, 185 



Blood, 171 



Bodo, land Mollusca, 24 



Boeuf and Erench oysters, 107 



Bolma, 409 



Boltenia, 346 



Boreofusus, radula, 221 



Bornella, 433 ; stomach, 239 



Borsonia, 426 



Borus, 356-358, 441 



Bourcieria, 357, 4^0 



Bourguetia, 4I''' 



Bourguignatia, 332 



Bouvier — see Fischer 



Boysia, 302, 442 



Brachial apparatus, types of, 500 



Brachiopoda, fossil, limestone formed 

 of, 492 ; shell, 493, 497 ; muscle scars 

 on, 494, 501; platform, 495; synopsis 

 of families, 603 ; stratigraphical dis- 

 tribution, 506 ; phylogeny and onto- 

 geny, 509 ; Orders, 511 



Brachiopoda, recent, 463 ; historical 

 account of, 464 ; shell, 465 ; body, 

 469 ; digestive system, 471 ; body 

 cavity, 472 ; heart, 473 ; excretory 

 organs, 474 ; muscles, 475 ; nervous 

 system, 478 ; reproductive system, 

 478 ; embryology, 479 ; habits, 482 ; 

 distribution, 484 ; classification, 487 ; 

 affinities, 487 



