688 



INDEX. 



Cirripedia, 283. 286. 

 Crustacea, 320. 

 Echinoderma, 210. 

 Gastropoda, 540. 560. 

 lusecta, 384. 

 Lamellibranchiata, 507. 

 Pteropoda, 537. 

 Rotifera, 48. 



Tunicata, 474. 476. 482, 483. 

 Rhizostoma, 163. 

 Rossia, 633. 

 Rotifer, 48. 



Rotifera, 39. Alimentary canal in, 48. 

 Classification of, 56. Chylaqueous 

 system, 49. Cilia of, 46. Generation 

 of, 49. Locomotion in, 47. Males 

 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. 

 Rhynchonellidte, 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. 

 Sarcoptcs Galci, 446. 

 Scalaria 542. 

 Scalpellum, male of, 287. 

 Scaphite, 597. 

 Scorpion, 447. 654. 

 Scutibranchiata, 574. 

 Scyphistoma, 184. 

 Sea-anemone, 134. 

 Sea-grai)es, 635. 

 Segestria, 455. 

 Sepia, 615. 624. 635. 

 Scrtularia, 126. 

 Shell of Annulata, 229.246. 



Brachiopoda, 485, 486. 



Cephalopoda, 576. 581. C92. 59.5. 

 605. 



Cirripedia, 278. 



Crustacea, 297. 302. 



Echinoderma, 192. 199. 



Gastropoda, 541. 



Lamellibranchiata, 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. 



Siphoniferous shell, formation of, 592. 

 Function of, 525. Structure of, 581. 

 595. 598. 606. 

 Siphonostomata, 575. 

 Sipunculus, 209, 225. 

 Skeleton, exteraal. 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. 

 SperraatoiDliora, 329. 400. 629. 

 Spermatozoa of 



Acalephse, 180. 



Annulata, 257. 



Arachnida, 461. 



Bryozoa, 151. 



Cephalopoda, 630. 



Crustacea, 32.5. 328. 



Echinoderma, 208. 220. 



Gastropoda, 564. 



Insecta, 400. 



Lamellibranchiata, 524. 



Myriapoda, 389. 



Nematoidea, 106. 



Polypi, 125. 135. 



Rotifera, 51. 

 Sphinx Ligustri, 430. 

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

 Spines of Echinus, 201. 

 Spinnarets of spiders, 457. 

 Spiriferidfe, 502. 

 Spiroptera Hominis, 97. 

 Spirostomum, 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, 19 L 

 Stephanoceros, 50. 

 Sterelmintha, 58. 117. 

 Stomapoda, 300. 320. 344. 

 Stone-lilies, 192, 

 Strepsiptera, 347. 353. 441. 

 Strobila, 184. 

 Strongylus Gigas, 97. 

 Sub-kingdom of Animals, 12. 

 Suctoria, 265. 

 Swammerdam, 401. 434. 



