INDEX. 



1573 



Argiopidce, 675. 



Argonauta, 881. 



Ariel ites, 848, 864. 



Arionellus, 531. 



Aristozoe, 514, 515. 



Armadillo, 559. 



Artemia, 510. 



Artemis, 737. 



Arthrolycosa, 576. 



Arthropleura, 559. 



Arthropoda, 468, 491. 



Arthropomata, 655. 



Artictilata (Brachiopoda), 655 ; [Crin- 



oidea), 423, 424, 438, 446. 

 Asaphidce, 533. 



Asaphus, 520, 521, 522, 533, 534, 535. 

 Ascetta, 179. 

 Ascoceras, 841, 842, 843. 

 Ascoceratidce, 841. 

 Ascodictyon, 613. 

 Ascones, 179. 

 Asiphonate Lamellibranchs, 691, 692, 



693- 

 Aspergillum, 752. 

 Aspidocaris, 516. 

 Aspidoceras, 868. 

 Aspidosoma, 397. 

 Aspidura, 403, 404. 

 Assiminea, 781. 

 Astacus, 565. 

 Astarte, 724, 725. 

 Astartella, 725. 

 Astartidce, 724. 

 Asteracti?iella, 177, 178. 

 Asterias, 391, 397, 398, 399. 

 Asteroidea, 391. 

 Asthenosoma, 380. 

 Astrceidtz, 269-274. 

 Astrceopora, 310. 

 Astrceospungia, 177. 

 Astralium, 775. 

 Astrangia, 270. 

 AstrocrinidcE, 464. 

 Astrocrinus, 464. 

 Astrogonium, 397, 398. 

 Astroides, 241, 242. 

 Astromma, 149. 

 Astropecten, 392, 397, 398. 

 Astrophyton, 402. 

 Astrorhiza, 126. 

 Astrorhizidtz, 126. 

 AstylocrinidcE, 436. 

 Astylocrinus, 436, 437. 

 Astylospongia, 165, 166, 167. 

 Atelecrinus, 443. 

 Ateleocystites, 452. 

 Athyris, 666. 

 Atlanta, 803. 

 Atlantidce, 802, 803. 

 Atractites, 878. 

 Atractosella, 162. 

 Atrypa, 668, 669. 

 Atrypidce, 668. 

 Aturia, 846. 

 Aucella, 706. 

 Aulacoceras, 877. 



Aulocopium, 165. 

 Aulophyllum, 292. 

 Aulopora, 255, 342. 

 Auloporida, 342, 343. 

 Aulosteges, 657. 

 Auricula, 813. 

 Auric?did&, 813. 

 Avicula, 703. 

 AviculidcB, 702. 

 Avic7ilopecte?i, 701, 702. 

 Aviculopinna, jog, 710. 

 Axinella, 162, 163. 

 Axinus, 720, 747. 

 Axophylhnn, 293. 

 Axopora, 225. 



Bactrites, 846, 1568. 

 Bactritidtz, 846. 

 Bactropus, 514. 

 Bactrynium, 678. 

 Baculites, 859, 861, 862. 

 Baerocrinus, 434. 

 Bairdia, 509. 

 Bakewellia, 705. 

 Balanidce, 497, 499. 

 Balanophyllia, 308. 

 Balanus, 498, 499. 

 Barbados earth, 33, 148. 

 Barnacles, 500. 

 Barrandeocrinidce, 427. 

 Barrandeocrinus , 427. 

 Barycrinus, 433. 

 Baryhelia, 267. 

 Baryphyllum, 296. 

 Baseopsis, 597. 

 Basom?natophora, 813. 

 Bathmoceras, 847. 

 Bathycrinus, 441. 

 Bathyurellus, 532. 

 Bathyurus, 532. 

 Batocrinus, 426. 

 Battersbyia, 269, 271. 

 Beatricea, 233, 234. 

 Beekite, 7. 

 Belemnitella , 877. 

 Belemnites, 875, 876, 877. 

 Belemnitidce, 874, 875. 

 Belemnocrin idee, 434. 

 Belemnocrinus, 434. 

 Belemnosis, 878. 

 BelemnoteuthidcB, 878. 

 Belemnoteuthis, 879. 

 Belinurus, 548, 550. 

 Bellerophina, 769. 

 Bellerophon, 768, 769. 

 Bellerophontidce , 768. 

 Beloptera, 878. 

 Belosepia, 880. 

 Beloteuthis, 880. 

 Berenicea, 618. 

 Beyrichia, 506, 507. 

 Bidiastopora, 617, 618. 

 Biflustra, 635. 

 Bifrontia, 772. 

 Bigenerina, 130. 

 BUoculina, 124. 



