482 



■ ZOOLOGY FOR MEDICAL STUDENTS 



Nacre, 268 



Nagana, 46 



Names of animals, 14 



Nares, 389 



Nauplius, 263 



Nautilus, 267, 270, 271. 274, 276, 279 



Necator, 203 



Negri bodies, 80 



Nematocyst, 90 



Nematode life-histories, 197-208 



Neopallium, 447 



Neosporidia, 65 



Nephridia, 86, 135, 233, 394 



Nephridial organs of vertebrates, 308, 



309, 310 

 Nephrostome, 135 

 Nereis, 144 

 Nerve centre, 97, 116 



commissure, 142 



fibre, 97 



ganglia, 142 



loop, 277 



plexus, 97 

 Nervous system, 85, 141 

 Nervures, 229 

 Neural arch, 314 



spine, 316 



tube, 326, 458 

 Neuropodium, 144 

 Neuroptera, 242 

 Nosema, 66 



Notochord, 292, 314, 394 

 Notopodium, 144 

 Nucleus, 2 

 Nummulites, 26 

 Nutrition in animals and plants, 51 



Obelia, 94-99, 95, 96, 100 

 Odontoblasts, 295 

 Oesophagus, 133 

 Olfactory capsule, 317 



organ, 337, 362, 389, 400 

 Oligochaeta, 152 

 Ookinete, 59 

 Opercultmi, 353 

 Opisthocoelous, 370 

 Opisthonephros, 308, 398 

 Opisthosoma, 211 

 Oral cone, 87 

 Orthoptera, 241 

 Osculum, ri8 

 Osphradium, 277 

 Ostium, 235 



Otocyst, 98, 103, 236, 343, 417 

 Otolith, 98, 362 

 Ovary, 91, 311 

 Oviducal gland, 313 

 Oviduct, 139, 311, 359 

 Ovipositor, 243 

 Oxyuris, 200 

 Oysters and disease, 281 



Pallial complex, 270, 272 



Pallium (brain), 388, 434 



Palp, 145 



Pancreas, 303 



Pappataci fever, 80 



Paraglossa, 228 



Paraglycogen, 52 



Paragonimus, 170 



Paramecium, 67-72, 68 



Paramylum, 35 



Parapodium, 144 



Parasitism, 32, 265 



Parthenogenesis, 207, 244 



Pearls, 268 



Pectinaria, 149 



Pectines, 223 



Pedicellariae, 284 



Pedipalp, 220 



Pelagic, 24 



Pellicle, 68 



Pericardiac cavity, 307, 398, 409 



Pericardio-peritoneal canal, 307 



Penpahts, 211, 240 



Perisarc, 95 



Peristaltic contraction, 134 



Peristome, 69 



Peristomium, 145 



Peritoneal canal, 310 



cavity, 307 



funnel, 310, 409 

 Peritricha, 73 

 Petromyzon, 396 

 Phagocytes, 135 

 Phagocytic organs, 181 

 Pharynx, 133 

 Phlebotomus, 251 

 Photogenic organs, 232 

 Phototaxis, 10 (foot-note) 

 Phylloxera, 241 

 Phylum, 18 

 Physiology, it 

 Pineal organ, 330, 400, 426 

 Piroplasma, 64 

 Pituitary body, 331, 365, 400 

 Placenta, 467, 469, 470 

 Placoid scale, 295 

 Plankton, 24 

 Plasmodiophora, 27 

 Plasmodium, 26, 179 

 Plasmodium, 55-62, 56, 61 



species, 60, 61 

 Pleuronectidae, 364 

 Poikilothermic, 427 

 Polar bodies, 185 



capsules, 65, 66 

 Polychaeta, 152 

 Polygordius, development, 150 

 Polynoe, 147 

 Polyp, 95 



Polypierus, 365-369 

 Polystomella, 19-24, 20, 22 



