INDEX. 



595 



Polyzoa, 53, 56, 389, 571, 572, 576. 



Polyzoarium, 390. 



Pontellidae, 237, 318. 



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



Porpita, 51, 127. 



Porites, 151. 



Prawn, 300. 



Priapulus, 216. 



Primordial utricle, 18. 



Proctucha, 158, 162. 



Productidse, 403, 404. 



Proglottis, 186. 



Prosobranchiata, 438, 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, 



108, 574. 

 Protozoic series, 579. 

 Protula, 207, 215. 



Dysteri, 208. 



Provinces of distribution, 24. 

 Pseud-hfemal system, 57. 

 Pseudo-filaria, 88, 89. 

 Pseudo-navicella, 88. 

 Pseudophyllidea, 187. 

 Pseudopodia, 29, 73, 75. 

 Pseudo-scorpions, 326. 

 Psychology, 9. 



Pteropoda, 58, 68, 401, 424, 432-434. 

 Pterygotus, 233. 

 Pulicidaa, 381. 



Pulmogasteropoda, 59, 424, 433. 

 Pulmonary sacs, 59. 

 Pulmonata, 423-429, 440. 

 Pulvinularia, 79, 80. 

 Pupipara, 367. 

 Pycnogonida, 331, 573. 

 Pyrosoma, 514, 528. 

 giganteum, 523. 



II 



Radiolaria, 12, 46-48, 6S, 80-83, 98, 564, 574. 



Redia, 179, 181. 



Eeef-builders, 149. 



Renierinse, 109. 



Reproductive system, 65. 



Respiratory system, 58. 



Rhabdocoela, 159. 



Rhabdopleura, 396, 397. 



Rhachis, 548. 



Rhizocephala, 253, 263. 



Rhizocrinus lofotensis, 498. 



Rhizostomida?, 124. 



Rhodope, 425. 



Rliopalodina, 470. 



Rhynchocoele turbellaria, 163. 



Rhynchonella, 398, 400. 



Rhynchonellidee, 403. 



Rock-builders, 81, 82. 



Rotalia, 78. 



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

 Rugosa, 148, 149, 153. 



Sacculina purpurea, 262. 

 Sagitta, 68, 542, 577. 

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

 Salpingoeca, 90. 

 Sarsia prolifera, 120. 

 Saxicava, 408. 

 Scallop, 408. 



Scalpelluni vulgare, 2G0-262. 

 Scaphopoda, 430-433. 

 Schizoccele, 51, 52, 219. 

 Schizopoda, 293, 299. 

 Scolopendra borbonica, 337. 



Hopei, 338. 



Scorpio afer, 321. 



Scorpions, 59, 320, 323, 324. 



Scrupocellaria ferox, 392. 



Scyllarus, 294. 



Sea anemones, 110. 



Sensitive plant, 44. 



Sensory organs, 27. 



Sepiadse, 446,452, 463, 465. 



Sepia officinalis, 446, 453. 



Serial relations of invcrtebrata, 578. 



Serpulidfe, 207, 214. 



Sertularidae, 117, 118. 



Shrimp, 303. 



Siphonophora, 118, 127, 133. 



Sipunculus nudus, 216-218. 



Snail, 442. 



Solenhofen slates, 136. 



Somatopleure, 57. 



Somites, 200. 



Sounds from insects, 376. 



Spatangoida, 489. 



Spermatophores, 454. 



Sphaeroinidae, 315. 



Sphaerozoum ovodimare, 84, 85. 



punctatum, 84. 



Sphinx ligustri, 367. 

 Spiders, 326. 

 Spiriferidse, 403. 

 Spirillum volutans, 12. 

 Spirorbis, 207. 

 Spirostomum, 97. 

 Spirulidse, 463. 

 Splanchnopleure, 56, 57. 

 Spongida, 102, 567. 

 Spongilla, 104, 111. 



fluviatilis, 103, 107. 



Sporocysts, 1S2. 



Springs, hot, living things in, 14. 



Squids, 463. 



Squilla, 312, 319. 



scabricauda, 31S, 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, 387. 



Strombidium, 94. 



" Struggle for existence," 30. 



