474 



SUBJECT INDEX. 



Plioronis, 37, 146, 153 

 Phosphorescence and digestion, 27 

 Photogenic organs, 264 

 PhryganidoB, 359 

 Phryxii.s, 363 

 PhylactoUemata, 65 

 Phyllocyanin, 226 

 Phyllodoce-green, 225 

 Phyllodoce viridis, 224, 226 

 Phyllopoda, 51-54, 167,- 196, 232, 271, 



328, 395 

 Physiological labour, division of, 8 



units, 3 

 Physiology, animal, i 

 Physopoda, 42 



Phytophagous larvae, 132, 133 

 Pigments, liver, 89, io8 



respiratory, 210, 214, 216, 218, 

 223, 225, 227, 233, 236, 237 

 PiUdium, 419 

 Pinna, 398 



squamosa, 143 

 Pisa, 412, 446 

 Planarice, 352, 387, 418 

 Planaria licJiencddes, 387 

 Planorbis, 146, 170 

 Planula, 411 



Platycarcinus pagurus, 138 

 Pleomorphism, 453, 455, 456 

 Pleurotomaria, 450 

 Pluteus, 416 

 Podostomata, 64 

 Poduridce, 359, 432 

 Poison-claws, 41, 268 



of Hymenoptera, 45 

 Poisons, action of, on Medusce, 309 

 Polia sanguiruhra, 146 

 Polistes gallica, 437 

 Polychata, 37, 38, 91, 131, 152, 190, 



191, 224, 322, 323, 388, 426 

 Polydesmus, 363 

 Polynoe, 38, 153, 191, 226, 322 

 Polyophthalmus, 354 

 Polyperythrin, 210, 218 

 Polyplacqphora, 69, 70, 368, 448 

 Polystomum, 420 

 Polyxenvs, 431 

 Polyzoa, 64, 65, 124, 127, 167, 200, 



235, 338, 447 

 Pontia-brassiow, alimentary canal of, 



94 

 PontdbdeUa, 153, 225, 226 

 Porifera, 30, 32, 79, 82, 120, 127, 184, 



209, 243, 245, 248, 296, 349, 378, 



408 

 Porites clavaria, 253 

 Porpita, 81 

 Priapulus, 224 



Proboscis, 37, 38, 42, 44, 76, 91, 324, 



Proctticha, 418 

 Protamceba, 405 



Protoplasm, chemistry of, 10-19 

 Protoplasta, 24-26, 404 

 Prototracheata, 40, 260, 324 

 Protula, 426 



Proventriculus, a, 38, 42, 70, 93 

 Protozoa, 4, 8, 21, 23, 31, 79, 119, 127, 

 182, 183, 208, 243, 245, 246, 295, 



346, 347> 375. 401, 404 

 Pseudo-filaria, 405 

 Pseudo-hsemal vessels, 123, 129, 155, 



187, 191-193, 223, 224, 240 

 Pseudo-hearts of Brachiopods, 276 

 Pseudo-navicellse, 405 

 Pseudopodia, 25, 26, 28, 29, iiq, 346, 



374, 375 

 Psyclie, 437 

 Pteropoda, 70, 72, 237, 367, 367, 369, 



398, 450 

 Ptyalin, 93 



Pulmonary sacs, 204, 240 

 Pulmogasteropoda, 70, 72, 237, 238, 



243, 366, 368, 448 

 Pupas, 45, 46, 438 

 Purpmira, 237, 238, 239 

 Pycnogonida, 47, 439, 442 

 Pygcera Bucephalus, 133, 134, i6oy 



i6i 

 Pyrenoid, 22 



QUBEK-BBB larvae, food of, 98 



Badiolaria, 26, 28, 80 



Radula, a, 72 



Baphididos, 359 



Reason in Aracl^nida, 37 1-373 



Insecta, 371-373 

 Eectal glands, 42, 43, 230 

 Rectum, 42-45, 60, 70, 94, 270 

 Renal organs, 30, 68, 143, 202, 203, 

 243, 24s, 247, 248, 254, 257, 259, 

 260, 266, 27s, 276, 286 

 Reproduction in Annelida, 422 



Arachnida, 439 



Brachiopoda, 447 



Ccehnterata, 409 



Crustacea, 442 



BcMnodermata, 412 



Insecta, 431 



Invertehrata, 399-453 



MoUusca, 448 



Myriapoda, 430 



Nematoscolices, 426 



Onychophora, 429 



Polyzoa, 447 



