8 4 4 



INDEX. 



Ova of 



,, Anodonta . 



,, Birds .... 



,, cockroach 



,, crayfish 



,, earthworm . 



,, Echinoderms 



,, Fishes. 



,, fluke .... 



5, frog . 



,, Hydra 



,, Monotremes 



,, Myxine 



,, Peripatus 



Placental Mammals 

 Reptilia 

 Vertebrates . 

 Oviducal gland of skate 

 Oviduct of Vertebrates . 

 Oviparous Vertebrates . 

 Ovis ..... 

 Ovists, the .... 

 Ovo-testis of snail . 

 Ovo-viviparous Vertebrates . 

 Ovum, the .... 

 ,, maturation of the 



membranes around 



the Vertebrate 

 theory 



55 



55 



55 



> 5 



Oxyuris 



Oyster . . . . 



PACHYMATISMA . 



Pagurus 



Palsearctic region . 



Palaemon 



Palaeonemertea 



Palaeoniscus . 



Palaeontological series . 



Palaeontology 



Palaeospondylus 



Palnsostraca . 



Palaeotherium 



Palato-pterygo-quadrate 



tilage 

 Palinurus 

 Palisade worm 

 Pallium 

 Palmipes 

 Palp . 



car- 



PAGE 



382 

 648 



315 



2 7 8 



2O7 

 26l 

 540 

 175 



578 



719 

 500 



305 

 700 



619 



494 

 527 

 493 

 495 

 736 



63 

 372 



495 

 58 

 61 



493 

 70 



193 



406 



130 



293 

 804 



293 



188 



550 

 79 

 77 



506 



358 

 740 



460 



293 

 194 



364 



242 



323 



PAGE 



Paludicella .... 237 

 Paludina .... 79 

 Pancreatic juice ... 28 

 Pan-ia . . . . ' . 755 

 Pandalus .... 293 

 Pangenesis .... 72 

 Pangolin . . . .728 

 Panmixia . . . -798 

 Panniculus adiposus . . 674 

 ,, carnosus . . 674 

 Panorpata .... 344 

 Pantopoda .... 363 

 Parachordals of skull . . 462 

 Paraglossae .... 324 

 Paramcecium . . 91, no 

 Parapodia . . . .219 

 Parasitic fauna . . . 798 

 Parasitism of 



,, Acarina . . 356 

 ,, Cestoda . .180 

 ,, Cirripedia . . 287 

 Copepoda . . 286 

 Crustacea . . 300 

 Cyamidge . .291 

 Cymothoidce . .291 

 Gasteropods . . 403 

 Insects . . . 342 

 ,, Nematoda . . 191 

 ,, Nemertea . .189 

 ,, Pentastomum . 357 

 ,, Trematoda . .176 

 Parasphenoid . . . 563 

 Parenchymula . . .129 

 Parental care in 



,, Amphibians . . 588 

 ,, Asteroids . . 247 

 Birds . . 654, 655 

 ,, crayfish . . 282 



,, crocodiles . . 618 

 ,, Fishes . . . 541 

 ,, Mammals . . 672 

 Paroccipital process . . 677 

 Parthenogenesis . . 54, 57 

 in Apus . . 285 

 in Artemia . 285 

 in Crustacea . 298 

 ,, in Insects . 333 



Patella 401 



Pathetic nerve . . . 472 

 Pathology, comparative . 79 



) 5 



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 55 



55 



55 



