688 



INDEX. 



Cirripeclia, 283. 286. 

 Crustacea, 320. 

 Ecliiiiodernia, 210. 

 Gastropoda, 540. 560. 

 Insecta, 384. 

 Laraellibr.anchiata, 507- 

 Ptcropoila, 537. 

 Eotifera, 48. 



Tunicata, 474. 476. 482, 483. 

 Khizostoma, 163. 

 Rossia, 633. 

 Eotifer, 48. 



Rotifera, 39. Alimentary canal in, 48. 

 Classification of, 56. Chylaqueous 

 system, 49. Cilia of, 46. Generation 

 of, 49. Locomotion in, 47. INIales 

 of, 51. Muscular system, 46. Ner- 

 vous system in, 47. Shells of, 45. 

 Teeth of, 47. Vascular system, 48. 

 Wheels of, 46. 

 Rotation of embryo in ovo, 526. 566. 



568. 636. 

 Rudistes, 532. 

 Rhynchonellidaj, 502. 



Saccobranchiata, 501. 

 Salivary glands in 



Cephalopods, 586. 622. 



Echinoderms, 204. 209. 



Entozoa, 103. 



Gastropods, 555. 



Insects, 380. 

 Salpa, 471. 483. 



metagenesis of, 484. 

 Sand-canal of Star-fish, 198. 

 Sarcoptes Galei, 446. 

 Scalaria 542. 

 Scalpcllum, male of, 287. 

 Scaphite, 597. 

 Scorpion, 447. 654. 

 Scutibranchiata, 574. 

 Scyphistoma, 184. 

 Sea-anemone, 134. 

 Sea-grapes, 635. 

 Segestria, 455. 

 Sepia, 61.5. 624, 635. 

 Sertularia, 126. 

 Shell of Annulata, 229.246. 



Erachiopoda, 485, 486. 



Cei)halopoda, 576. 581. C92. ,595. 

 605. 



Cirripedia, 278. 



Crustacea, 297. 302. 



Echinoderma, 192. 199. 



Gastro]ioda, 541. 



Lamellibranehiata, 513. 



Polygastria, 19. 



Polypi, 125. 138. 



Pteropoda, 535. 



Rotifera, 45. 



Tunicata, 473. 482. 



Absorption of, 544. 



Ship-borer, 517. 521. 



Siliceous deposits of Infusoria, 37. 



Single-celled Animals, 35. 



Sinistral shells, 542. 



Siphon of bivalves, 505. 513. 517. 



of univalves, 543. 



of Cephalopods, 593. 

 Siphonifera, 532. 



Siphonifei'ous shell, formation of, 592. 

 Function of, 525. Structure of, 581. 

 595. 598. 606. 

 Siphonostomata, 575. 

 Sipunculus, 209, 225. 

 Skeleton, external. See Shell. 

 Arachnida, 448. 

 Crustacea, 300. 

 Insecta, 348. 



Internal, 136. 486. 582, 608. 

 Slug, 549. 565. 570. 

 Snail, 199. 207. 



Spermathcca,329. 401.461. 464. 

 Sperm atophora, 329. 400. 629. 

 Spermatozoa of 



Acalepha;, 180. 



Annulata, 257. 



Arachnida, 461. 



Bryozoa, 151. 



Cephalopoda, 630. 



Crustacea, 325. 328. 



Echinoderma, 208. 220. 



Gastropoda, 564. 



Insecta, 400. 



Lamellibranchiata, 524. 



Myriapoda, 389. 



Nematoidea, 106. 



Polypi, 125. 135. 



Rotifer.!, 51. 

 Sphinx Ligustri, 430. 

 Spiders, loves of, 462. Webs of, 458. 

 Spines of Echinus, 201. 

 Spinnarets of spiders, 457. 

 Spiriferidaj, 502. 

 Spiroptera Homiuis, 97. 

 Spirostomirm, 18. 

 Spirula, 577. 606. 



Spontaneous fission, 27.69.73. 125. 178. 

 186. 196. 212. 

 generation, 43. 78. 87. 115. 

 experiment on, 44. 

 Squilla, 300. 305. 

 Stag-beetle, 382. 

 Star-fish, 191. 

 Stepharioceros, 50. 

 Sterelmintha, 58. 117. 

 Stomapoda, 300. 320. 344. 

 Stone-lilies, 192. 

 Strepsiptera, 347. 353. 441. 

 Strobila, 1 84. 

 Strongylus Gigas, 97. 

 Sub-kingdom of Animals, 12. 

 Snctoria, 265. 

 Swaramerdam, 401. 434. 



