INDEX. 



Pollicipes 423 2 , fertilis- 

 ation of 422, fossil 

 358. 



Poltys 824 1 . 



Polyartemia 376, leg of 

 370, mandibular palp 

 of 369. 



Polyasterias 192. 



Polybius 548 2 . 



Polycarpa 29 2 , test of 26. 



Polycheles 391 2 . 



Polycheles 534 2 . 



Polycheria 501 2 . 



Polyclinidae, epicardiun 

 of 15, gonads of 18. 



Polyclinoides 34 1 . 



Polyclinophilus 408 2 . 



Polyclinopsis 34 2 . 



Polyclinum 34 1 . 



Polycope 390 2 . 



Polycopsis 390 2 . 



Polyctenes 694 l . 



Polycyclus 32 1 . 



Polycyphus 241 l . 



Polydesmus 584, 594 1 , 

 larva 590. 



Polyembryony 340, 643, 

 760, Insecta 641. 



Polyergus 772 1 . 



Polygnotus, embryonic 

 fission 642. 



Polymorpha 727. 



Polyommatus 713 l . 



Poly onyx 542 l . 



Polypeltes 297. 



Polyphemus 381 2 , sper- 

 matozoa of 354, 355. 



Polystyela 37 l . 



Polysyncraton 36 1 . 



Polyxemis 591, 592, 

 length 583. 



Polyzonium 594 1 . 



Polyzosteria 667 2 . 



Pompilus 768. 



Pond-skaters 692 2 . 



Ponera 773. - 



Pontarachna 850 2 , 851 a . 



Pontaster 189 1 . 



Pontella 405 2 . 



Pontellina 405 2 . 



Pontocaris 534 1 . 



Pontocypria 391. 



Pontocypris 391. 



Pontonia 533 2 . 



Pontophilus 534 1 . 



Pontoporeia 501 1 . 



Porania 190, 191 l , skin 

 169. 



Poraniomorpha 191 1 . 



Porcellana 542 1 , para- 

 site of 491 1 , parasite 

 on 49 1 2 . 



Porcellanaster 189 2 . 



Porcellidium 406 1 . 



Porcellio 482, 487. 



Pore area and fasciae 

 215. 



Pore-rhombs 307, Cri- 

 noids 307. 



Porocephalus 859, 863. 



Porocidaris 239 2 . 



Porocrinus 295 1 , pore- 

 rhombs 309. 



Porphyrophora 701 1 . 



Porrhopis 824 2 . 



Porthesia 718 1 . 



Porthetria 718 1 . 



Portumnus 548 2 . 



Portunicepon 491 2 . 



Portunion 490, 491 J . 



Portunus 548 2 . 



Posterior coelom Echi- 

 noderms 144. 



Postscutellum 613. 



Potamobia 536 l . 



Potamon 548 1 . 



Poteriocrinus 295, calyx 

 276. 



Poutalesia 246, 247. 



Praescutum 613. 



Prawn 529 *, 533 2 . 



Praying-Insects 668 J . 



Preantennae 320, of In- 

 sects 321. 



Prebranchial zone 5, 7. 



Prechelicerae of Arach- 

 nida 775. 



Precheliceral segments 

 of Arachnida 323, 

 324. 



Pregenital segment of 

 Arachnida 775. 



Premandibular segment 

 320. 



Prestomium of Annelids 

 326, 327. 



Prestwichia 795. 



Primary body-cavity 14. 



Primary plate 211. 



Primary radials Crinoids 

 275. 



Primaxil 277. 



Primibrach 277. 



Primno 503 1 . 



Prionocrangon 534 1 . 



Priscula 822 2 . 



Probopyrus 491 2 . 



Proboscichordata 68. 



Proboscis organ 80, sep- 

 tum 81, pores Balano- 

 glossida 83, skeleton 

 85, ventral caecum 

 83, central complex 

 84. 



Probuds of Doliolum 57 . 



Procerebrum 321, 326, 

 633. 



Processa 534 1 . 



Processionary - moth 

 714 2 . 



Prochilus 673 2 . 



Procleobis 833. 



Proctophyllodes 852 2 . 



Proctotrypidae 758. 



Prodidomus 822 *. 



Progoneata 578. 



Progonechinus 241 1 . 



Prokoenenia 827, 828, 

 829. 



Proleg 622. 



Proles gregaria of Sal- 

 pida 48, solitaria 49. 



Promachocrinus 301 1 . 



Promachus 670 l . 



Promesosternite 787. 

 | Prometabola 649. 



Prominents 715 1 . 



Pronoe 502 2 . 



Pronuba 720 2 , 721. 

 I Propostira 823 l . 

 \ Prosalpia 842 J . 

 I Proscorpius 806. 

 Prosoma 775, of Lepas 

 419. 



Prosopis 763. 



Prosopistoma 686. 



Prosopodectes 852 J . 



Prostigmata 850. 



Protalges 852 2 . 



Protaspis stage 365. 



Protaster 205. 



Protella 504 \ 



Proteolepas 428. 



Proterhinus 736 2 . 



Prothorax 611. 



Proto 504 1 . 



Protobalanus 103 2 . 



Protoblastoidea 311. 



Protocephalon 326. 



Protocerebrum 321. 



Protocrinus 307, 309. 



Protolycosa 819. 



Protomedeia 500 2 . 



Protopodite 343. 



Protosquilla 511. 



Protozoaea of Leucifer 

 530. 



