1572 



INDEX. 



Alveopora, 311. 



Amaltheidce, 862. 



Amaltheus, 863. 



Amauropsis, 779. 



Amberleya, 776. 



Ambonychia, 708. 



Ametabolic Insects, 592. 



Ammonites, 855, 856, 864. 



Ammonoidea, 833, 848. 



Amasbea, no, 



Amphidetus, 390. 



Amphigenia, 672. 



Amphihelia, 267. 



Amphion, 536, 537. 



Amphipoda, ^56, 557. 



Amphipora, 236. 



Amphispongia, 176, 177. 



Amphistegina , 134. 



Amphoracrinvs, 426. 



Amplexopora, 356. 



Amplexus, 295. 



Ampullaria, 780. 



Ampiillina, 779. 



Ampyx, 544, 545. 



Anabacia, 304, 305. 



Anabacidce, 304. 



Ananchytes, 389. 



Ananchytidce, 389. 



Anaptychus, 851. 



Anarthropoda, 468, 469. 



Anastrophia, 672. 



Anatifa, 502. 



Anatlfopsis, 501. 



Anatina, 749. 



Anatinacea, 748. 



Anatinidce, 748. 



Anaulocidaris , 275, 377. 



Ancillaria, 798. 



Ancyloceras, 869, 870. 



Ancylus, 814. 



Angelina, 531, 532. 



Anguillula, 469. 



Animal Kingdom, classification of, 85, 



87. 

 Anisocardia, 736. 

 Anisophyllum, 296. 

 Annelida, 470. 

 Annulosa, 468. 

 A?todon, 721. 

 Anodonta, 721. 

 Anodontopsis, 724. 

 Anomalocrinidce , 434. 

 Anomalocrinus, 434. 

 Anomalocystites, 452. 

 Anomia, 697. 

 AnomiidcB, 697. 

 Anomocladina , 165. 

 Anomura, 562, 565. 

 Anoploiheca, 664. 

 Anoplura, 592. 

 Anopolenus, 529. 

 Antedon, 409, 410, 411, 443. 

 Anthocrinus, 431. 

 Anthracitic Shales, 35. 

 Anthracomarti, 575. 

 Anthracomartus, 576. 



Anthracomya, 751. 



Anthracoptera, 711. 



Anthracoscorpii, 579 



Anthracosia, 722. 



Anthrapalcemon, 563. 



Antipatharia, 261, 263. 



Antipathidce, 244, 261, 263. 



Ant-lions, 598. 



Ants, 600. 



Aphatiaia, 706. 



Aphaniptera, 599. 



Aphis, 596. 



Aphragmites, 843. 



Aphrocallistes , 176. 



Apiocrinidce, 440. 



Apiocrinus, 440. 



Apiocystites, 456. 



Aplysia, 802. 



Aplysiadce, 802. 



Aporosa, 264, 265. 



Aporrhaidce, 789. 



Aporrhais, 789. 



Apterous Insects, 592. 



Aptychopsis, 515. 



Aptychtis, 851, 852. 



Apus, 510. 



Apygia, 655. 



Aqueous rocks, n. 



Arabellites, 480. 



Arachnida, 572. 



Arachnophylhim, 286, 287. 



Ar&opoma, 299, 301. 



Arceopora, 309, 311. 



Aragonite, in calcareous organisms, 25, 



26. 

 Araneida, 580. 

 Area, 712. 

 Arcacea, 712. 

 Arcestes, 856. 

 ArcestidcB, 855, 856. 

 Archcedisctts, 135. 

 Archceocidaris, 376, 377. 

 Archceocyathince, 183, 185, 186. 

 Archceocyathus, 183, 184. 

 Archceolepas, 502. 

 Arch&oniscus, 559. 

 Archceoscyphia, 166. 

 Archceosphcerina, 143. 

 Archceozo7iites , 812. 

 Archanodonta , 721. 

 Archidesmus, 584. 

 Archimedes , 626, 627. 

 Archimedopora, 626. 

 Archimylacris, 593. 

 Archipolypoda, 582, 583. 

 Architarbus, 576. 

 Archiulidce, 584. 

 Archhdus, 584, 585. 

 Arcidce, 712. 

 Arcomya, 748. 

 Arcomyidce, 748. 

 Arcturus, 558. 

 ^r«a, 537. 

 Arenicolites, 481, 482. 

 Arethusina, 542. 

 Argiope, 676. 



