Index. 



453 



Pseudomantle, 281. 

 Pseudonavicellce, 65. 

 Pseudoneuroptera, y)^^. 

 Pseudoparasitism, 40. 

 Pseudoparthenogenesis. 36. 

 Pseudopodia, 2. 

 Pseudo scorpiones, 375. 

 Psuedostigmata, 365. 

 Pseudotentaculata, 156. 

 Pseudova. 401. 

 Pseudovaria, 36. 

 Psocus, 404. 

 Psorospermia, 65. 

 Psolus, 151, 153. 

 Psyche, 36, 411. 

 Psyllidae, 401. 

 Ptenoglossa, 288, 309. 

 Pteraster, 137, 154. isr,. 

 Pterobothrium, 171 

 Pterocardiac ossicleK, 359. 

 Pteroceras, 298, 3oy. 

 Pterocoma, 131. 

 Pterodina, 198. 

 Pteroeides, 120, 

 Pterogorgia, 122. 

 Pteronarcys, 393. 405 ■ 

 Pteropelagia, 279. 

 Pteropoda, 275. 

 Pteroptus, 373, 

 Pterosoma, 304. 

 Pterotrachea, 280, 290, 295. 

 Pterophoridse, 415. 

 Ptilinus, 418. 

 Ptinus, 418. 

 Ptychocephalidaj, 185. 

 Ptyguridse, 197. 

 Ptygura, 197. 

 Pulex, 407. 

 Pulicidcc, 407. 

 Pulmonary sacs, 33. 

 Pulmonata, 28c, 311, 346, 363. 

 Pupa, 152, 397. 

 Pupipara, 408. 

 Purple glands, 297. 

 Purpura, 291. 

 Pusionella, 309. 

 Pustularia, 308. 

 Pycnogonidae, 364, 367, 370. 

 Pycnogonum, 370. 

 Pygidium, 351. 

 Pygobranchiata, 294, 305. 

 Pyralidse, 411. 

 Pyramidellidae, 310. 

 Pyrgonma, 345. 



Pyrochroidse, 415. 

 Pyrophorus, 418. 

 Pyrosoma, 239. 

 Pyrosomidae, 240. 

 Pyrula, 319. 



Quaternary age, 47. 

 Quatrefages, 189. 



Rabl-Ruckhardt, 16, 17. 

 Rachiglossata, 288. 

 Radial canals, 73. 

 Radial plates, 130. 

 Radialia axillaria, 130. 

 Radiolaria, li, 25, 60. 

 Radius, 345. 

 Radula, 272, 287. 

 Radulidae, 268. 

 Rainey, 26. 

 Ranatra, 401. 

 Ranella, 308. 

 Rangia, 271. 

 Rangidae, 209. 

 Ranke, 24. 

 Raptorial birds, 6. 

 Raphidiophrys, 59. 

 Raphidozoum, 64. 

 Raphiophora, 73. 

 Raphynis, 77. 

 Rataria, 107. 

 Rathke, 16, 17, 164. 

 Reagents, action of, on proto- 

 plasm, 3. 

 Receptaculum scolicis, 168. 

 Recklinghausen, 2, 16. 

 Red brown organ of Keber, 261. 

 Redia, 175, 

 Reduvini, 401. 

 Reefs, coral, 118. 

 Regularia, 146. 

 Reichert, 11. 

 Remak, 14, 22—5. 

 Reniera, 74, 77. 

 Renilla, 121. 

 Reproduction, 34. 

 Reproduction of Arachnida, 369. 



„ of Brachiopoda, 250. 



„ of Bryozoa, 228. 



„ of Crustacea, 348. 



„ of Ctenophora, 108. 



„ of Discophora, 103. 



„ of Echini, 145. 



„ of Gasteropoda, 299, 



„ of Hydra, 82. 



