572 



INDEX 



Mesentery, 310 



Mesoblast (see mesoderm) 



Mesoderm, 5 



Mesodermic somites, 9 



Mesonephric duct, 446-450 



Mesonephros, 441, 445 



Mesopterygium, 140, 156 



Mesorchium, 463 



Mesovarium, 463 



Metacarpus, 160 



Metamerism of head and body, 75, 181, 



233, 237 



Metanephric duct, 445 

 Metanephros, 441, 446 

 Metapleural folds, 137 

 Metapophyses, 62 

 Metapterygiurn, 140, 155 

 Metatarsus, 160 

 Metencephalon, 199 

 Microsmatic, 269 

 Milk-dentition, 319 

 Mitosis, 3 

 Mitral valve, 411 

 Mixopterygium, 156, 465, 486 

 Morphology, 2 

 Morula, 4 

 Mouth, 308 



Mucous membrane, 344 

 Miillerian duct, 446 

 Muscular system, 173-189 

 Muscles : cranial, 187 ; integumentary, 

 175 ; involuntary, 173 ; of diaphragm, 

 184 ; of extremities, 185 ; of eye, 286 ; 

 of feather-sacs, 25 ; of iris, 275 ; of 

 trunk, 179 ; parietal, 173 ; visceral, 

 173, 187 ; voluntary, 173 

 Muscles, arrectores pili, 33 



ciliary, 275 



Crampton's, 282 



cremaster, 482 



intercostal 182 



levatores costarum, 182 



masseter, 189 



mylohyoid, 188 



obliquus externus and profundus, 

 181, 182 



panniculus carnosus, 178 



papillary, 411 



pectoralis, 182 



platysma myoides, 178 



psoas, 182 



pyramidalis, 183 

 , rectus, 181 



sphincter colli, 178 



stapedius, 189, 303 



sternohyoid, 173, 181, 183 



tensor tympani, 303 



trochlear, 286 



Musk-gland of Crocodiles, 23 

 Myelencephalon, 200 

 Myelin, 193 

 Myocardium, 395. 

 Myocommas, 63, 179 

 Myomeres, 179 

 Myotomes, 9, 442 



N. 



Nails, 31, 32 

 Nares (see Nostrils) 

 Nasal capsules, 78 

 Naso-lacrymal duct, 265, 289 

 Naso-palatine canal, 273 



duct of Myxine, 260 

 Navicular, 170 

 Neck, 12 

 Neocranium, 87 

 Neostoma, 203, 308 

 Nephrostomes, 392, 443 

 Nephrotome, 441 

 Nerve-cells, 193 



eminences, 250 



fibres, 193 



lateral, 245 



phrenic, 185 



plexuses, 233 



sacs of Teleostomes, 253 

 Nerves : cerebral, 234-247 ; olfactory, 

 258 ; optic, 273 ; oculumotor, trochlear 

 and abducent, 237 ; trigeminal, 240 ; 

 facial, 242 ; auditory, 244 ; glosso- 

 pharyngeal, 244 ; vagus, 245 ; spinal 

 accessory, 245 ; hypoglossal, 246 

 Nerves, spinal, 233 



spino-occipital, 231, 246 

 Nervous system, 193-249 



central, 195-230 



peripheral, 230-247 



sympathetic, 247-249 

 Nervus terminalis, 236 

 Neural, arches, 48 



plate, 49 



ridge, 232 



spines, 49 



tube, 11 

 Neuraxis, 193 

 Neurenteric canal, 195 

 Neurilemma, 193 

 Neurocranium, 75, 76 

 Neuroglia, 193 

 Neuropore, 204 

 Nictitating membrane, 287 

 Nose (external), 270 

 Nostrils, 259, 261, 263, 265, 266, 270 

 Notochord, 6, 11, 45 

 Nuchal plates, of Reptiles, 43 

 Nuclear membrane, 3 

 Nucleolus, 3 

 Nucleus, 3 

 Nucleus pulposus, 60 

 Nutrition, organs of, 308 







Obturator foramen, 145, 149 

 Occipital condyles, 97, 111, 122, 127 

 Odontoblasts, 313 

 Odontoid process, 57 

 (Esophageo-cutaneous duct, 354 

 (Esophagus, 310, 335 

 Olecranon, 169 



