452 



Index. 



Polymorphinidae, 84. 

 Polynesia, 44. 

 Polynoe, 220. 

 Polyophthalmos, 216. 

 Polyp arium, III. 

 Polypieroid, iii. 

 Polyphemus, 350. 

 Polyplacophora, 316. 

 Polypi, 81. 

 Polyselmis, 56. 

 Polystemma, 162. 

 Polystoma, 75. 

 Polystomata, 72. 

 Polystomella, 5t, 55. 

 PolystomidEe, 175. 

 Polysyca, 78. 

 Polythalamia, 51. 

 Polytoma, 55. 

 Polytrema, 52. 



Polyxenus, 381. 



Polyzoa, 224. 



Polyzonium, 381—2. 



Pomatobranchiata, 294. 



Pompiliidse, 420. 



Pontarachna, 373. 



Pontellidse, 341. 



Pontobdella, 198. 



Pontogenia, 220. 



Pontolimacidae, 303. 



Pontolimax, 288, 293, 300. 



Pontonema, 184. 



Porcellana, 356. 



Porcellio, 362. 



Porellidse, 230. 



Porifera, 47, 72. 



Poritidae, 116. 



Poritinse, 1 16. 



Porphyrophora, 400. 



Porpita, 49, loi. 



Portunus, 357. 



Post-scutellum, 385. 



Poster obranchea, 305. 



Potomospongia, 78. 



Poteriocrinus, 130. 



Praniza, 361. 



Pranizidae, 361. 

 Praya, 97, 98. 

 Prayida?, 98. 



Prehensile collar of Doris, 



Priapulidse, 189, 191. 



Priapulus, 193. 



Primnoa, 121. 

 Primnoidse, I2I. 

 Prisopus, 403. 



Proboscis, 156, 287, 

 Procephalic scales, 398. 

 Procerus, 416. 

 Processus vocalis, 17. 

 Proclypeus, 348. 

 Procotyla, 161. 

 Proctonotidffi, 282, 304. 

 Proctucha, 168. 

 Productidse, 248. 

 Proglottis, 165. 

 Prolegs, 397. 

 Pronotum, 385. 

 Proostracum, 314. 

 Propodite, 331. 

 Propodium, 243. 

 Proporus, 161. 

 Prorhynchus, 161, 162. 

 Prorodon, 66, 67. 

 Proscolex, 167. 

 Prosobranchiata, 280, 306. 

 Prosoma, 286, 355. 

 Prosorrhochmus, 162—3. 

 Prosternum, 385. 

 Prosthecerseidae, 160. 

 Prostomium, 157. 

 Prostomum, 161. 



Protagon, 7. 



Protamoeba, 49. 



Protaster, 134. 



Proteolepas, 344. 



Prothorax liber, 385. 



Protista, 25. 



Protogenes, 49. 



Protohydra, 84. 



Protomonas, 49. 



Protomyxa, 2, 49. 



Protoplasm, 2, 6. 



Protoplasta, 25, 56. 



Protopodite, 331. 



Protozoa, 46, 47, 48. 



Protozooid, 35. 



Protula, 223. 



Psammocora, 116. 



Pselaphidae, 414. 



Pseudarachna, 370. ■ 



Pseudembryo, 125. 



Pseudoceridae, 160. 



Pseudocamerated shells, 284. 



Pseudochlamys, 57. 



Pseudocollum, 273. 



PseudocolumeUa, 112. 



Pseudogorgia, 121. 



Pseudonychia, 385. 



Pseudofilariae, 65. 



