Phaseogale , . 
Phascolarctos 
Phascolomyidz 
Phascolomys . 
Phascolosoma 
Phenacodus . ‘ 
Phoca . 7 
Phocena . . 
Phocidze 
Pholas . . 
Phormosoma ‘s 
Phoronidea . 7 
Phoronis . . 
Phrynosoma. . 
Phrynus . 
Phyllopoda . 
Phyllosoma . . 
Phylloxera . : 
Phylogeny 7 
Physalia . 
Physeter : ‘ 
Physiology . . 
Physoclistous ‘ 
Physostomous . 
Phytoptids F 
Phytozoa . 
Pia mater 
Pica é as 
Pigeon. E . 
Pigeon’s milk 
Pigs : 
Pilidium larva 
Pineal body . 
rf in Sphenodon 
55 in Iguana . 
Pinnipedia . 
Pinnotheres . . 
Pipa. : ij . 
Pipe-fishes . > ‘ 
Pipistrelle . 
Piroplasma . . 
Pisces (see Fishes) 
Pisiform 
Pi-hecanthropus 
Pituitary body 
Placenta, Hints of a, 
Mammalia 
of Mammals . 
” 
INDEX 
PAGE 
3, 
Placentation, classification of 
Placoid scales 
746 
748 
747 
747 
247 
694 
779 
770 
Plagraulax . . 
Planaria . 
Plankton. f 
Planorbis 
Plantigrade . 
Plants and Animals 
Planula larva 
Plasmodium . 
Plastron 4 . 
Platanista . . 
Platydactylus 
Platyhelminthes 
Platypus. 
Platyrrhina . 
Plesiosauria . 
Pleura of crayfish . 
Pleuracanthus 
Pleural membrane 
Pleural sacs . . 
Pleurobranchs of crayfish 
Pleurodont teeth . 
Pleuronectidze 
Pleuro-peritoneal cavity 
Pliosaurus 
Ploughshare bone 
Plumularia . 
Pluteus larva 
Pluvianus . 
Pneumatic bones . 
Pneumoderma 
Pneumogastric nerve 
Podical plate of 
roach 
Podobranchs of crayfish 
Podura 
Poikilothermal 
Poison gland of snakes . . 
Polar globules 
oes EPs 
cock-- 
in earthworm . 
» in Vertebrates 
Polecat 
Polian vesicle (Holothuria) 
Polychezeta 
| Polycladida . 
“Polyclinum . 
Polygordius . 
Polymeniscous eyes 
Polymorphism 
Polyodon  . . 
Polyphemus . . 
228, 
327 
291 
339 
220 
513 
7 
270 
