INDEX. 



595 



Polyzoa, 53, 56, 3S9, 5T1, 572, 576. 



Polyzoariurn, 390. 



Pontellidae, 237, 318. 



Porifera, 51, 55, 62, 102, 109, 574. 



Porpita, 51, 127. 



Porites, 151. 



Prawn, 300. 



Priapulus, 216. 



Primordial utricle, 13. 



Proctucha, 15S, 162. 



Prodictidae, 403, 404. 



Proglottis, 1S6. 



Prosobranchiata, 433, 439, 444. 



Protamoeba, 75, 86-89. 



Protein, 9. 



Proteolepas bivincta, 261. 



Proteus, 60. 



animalcules, 86. 



Protococcus, 12, 17. 



Protogenes, 75-78, 86, 89. 



Protomonas, 77, 85, 89. 



Protomyxa aurantiaca, 76. 



Protoplasm, 9, 14. 



Protoplasta, 86, 574. 



Protozoa, 38, 47, 48, 54, 61, 62, 73, 102, 103, 



103, 574. 

 Protozoic series, 579. 

 Protula, 207, 215. 



Dysteri, 208. 



Provinces of distribution, 24. 

 Pseud-haemal system, 57. 

 Pseudo-filaria, 83, 89. 

 Pseudo-navicella, 88. 

 Pseudophyllidea, 187. 

 Pseudopodia. 29, 73, 75. 

 Pseudo-scorpions, 326. 

 Psychology, 9. 



Pteropoda, 53, 68, 401, 424, 432-434. 

 Pterygotus, 233. 

 Puhcidse, 3S1. 



Pulmogasteropoda, 59, 424, 433. 

 Pulmonary sacs, 59. 

 Pulmonata, 423-429, 440. 

 Pulvinularia, 79, SO. 

 Pupipara, 367. 

 Pycnogonida, 331. 573. 

 Pyrosoma, 514, 528. 

 giganteum, 523. 



R 



Radiolaria, 12, 46-48, 6S ( S0-S3, 93, 564, 574. 



Redia, 179, 131. 



Reef- builders, 149. 



Renierinae. 109. 



Reproductive system, 65. 



Respiratory system, 53. 



Rhabaoccela, 159. 



Rhabdopleura, 396, 397. 



Rhachis. 548. 



Rhizocephala. 253, 263. 



Rhizocrinus lofotensis, 493. 



Rhizostouiidae, 124. 



Rhodope. 425. 



Rhopalodina, 470. 



Rhynchocoele turbellaria, 163. 



Rliynchonella, 398, 400. 



Rhynchonellidas, 403. 



Rock-builders, 81, 82. 



Rotalia, 78. 



Rotifera, 12, 56, 89, 157, 162, 166, 574. 

 Rugosa, 148, 149, 153. 



Sacculixa purpurea, 262. 

 Sagitta. 6s, 542, 577. 

 Salpa. 36, 514, 518, 531, 532. 

 Salpingoeca, 90. 

 Sarsia prolifera, 120. 

 Saxieava, 40^. 

 Scallop. 408. 



Scalpellum vulgare, 260-262. 

 Scaphopoda. 430-433. 

 Schizoccele, 51, 52, 219. 

 Schizopoda. 293. 299. 

 Scolopendra borbonica, 337. 



Ilopei, 338. 



Scorpio afer, 821. 



Scorpions. 59, 320, 323, 324. 



Scrupoeellaria ferox, 392. 



Scyllarus, 294. 



Sea anemones, 110. 



Sensitive plant, 44. 



Sensory organs, 27. 



Sepiadae. 446,452, 463, 465. 



Sepia officinalis, 446, 453. 



Serial relations of invertebrata. 578. 



Serpulidae, 207, 214. 



Sertularidae, 117, 113. 



Shrimp, 3(13. 



Siphonophora, 118, 127, 133. 



Sipunculus nudus, 216-218. 



Snail, 442. 



Solenhofen slates, 136. 



Somatoplem-e, 57. 



Somites, 200. 



Sounds from insects, 376. 



Spatangoida, 439. 



Spermatophores, 454. 



Sphaeromidae, 315. 



Sphaerozoum ovodimare. 84, 35. 



punctatum, 84. 



Sphinx ligustri, 367. 

 Spiders. 326. 

 Spiriferidae, 403. 

 Spirillum volntans. 12. 

 Spirorbis. 207. 

 Spirostomum, 97. 

 Spirulidae. 463. 

 Splanchnopleure. 56, 57. 

 Sponeida, 102, 567. 

 Sponsilla,' 104, 111. 



fluviatilis. 103, 107. 



Sporocysts. 183. 



Springs, hot, living things in, 14. 



Squids. 463. 



Squilla, 312, 319. 



scabricauda, 318, 319. 



Star-fish. 474. 



Stentor, 100. 



Stephanoceros. 167, 169, 170. 



Sternaspis, 215. 



Stigmata. 59, 325. 339, 356, 374- 



Stings of insects. 372. 



Stomatopoda. 237, 317. 



Stone corals, 147, 149. 



Strepsiptera, 371, 3S7. 



Strombidium. 94. 



" Struggle for existence," 30. 



