INDEX. 



385 



Olfactory organ Cockroach, 271 ; Crayfish, 

 249 ; Mussel, 318 ; Snail, 299. 



region of skull Fowl, 152 ; Frog, 156 ; 



Rabbit, 144. 



Olivary tract Rabbit, 217. 



Omentum Pigeon, 46. 



Omosternura Frog, 169. 



Operculum Cod, 10 ; Frog, 4. 



Ophthalmite Crayfish, 235. 



Opisthotic Fowl, 152 ; Frog, 157 ; Rabbit, 

 146. 



Optic capsule, 139. 



chiasma and tracts. 218. 



commissure, 218. 



cup, 131. 



foramen Fowl, 151 ; Frog, 155 ; 



Rabbit, 143. 



lobes Cod, 30 ; Frog, 30, 217 ; Pigeon, 



52, 217 ; Rabbit, 44, 217. 



pit, 131. 



region of skull Fowl, 152 ; Frog, 157 ; 



Rabbit, 147. 



thalami, 218. 



vesicles, 131. 



Ora serrata, 131. 



Orbicular bone Rabbit, 147. 



Orbit Fowl, 153 ; Rabbit, 147. 



Orbital plate Fowl, 151. 



Orbital processes of frontal Rabbit, 142. 



presphenoid Rabbit, 142. 



Orbito-sphenoid Fowl, 151 ; Rabbit, 142. 



Organ of Jacobson Rabbit, 14. 



Orthoptera, 257. 



Osphradium Mussel, 318. 



Ossicles of gastric mill Crayfish, 243. 



Osteoblast, 70, 121. 



Osteoclast, 122. 



Osteogenetic layer, 121. 



Otic vesicle, 135. 



Otocyst Mussel, 318. 



Otoliths, 134. 



Ovary Cockroach, 273 ; Cod, 35 ; Crayfish, 

 242-252 ; Frog, 29 ; Earthworm, 287 ; 

 Hydra, 340 ; Liver-fluke, 326 ; Mussel, 

 318 ; Pigeon, 51 ; Rabbit, 43 ; Tapeworm. 

 333. 



Oviduct Cockroach, 274 ; Cod, 35 ; Cray- 

 fish, 242, 252 ; Earthworm, 287 ; Frog, 29 ; 

 Liver-fluke, 326 ; Pigeon, 51 ; Rabbit, 

 see Fallopian tube ; Snail, 301. 



Ovipositor, 263. 



Ovisac, 87 Crayfish, 252. 



Ovotestis Snail, 300. 



Ovum, or egg Cockroach, 274 ; Cod ; 

 9 ; Crayfish, 253 ; Earthworm, 289 ; Fowl, 

 113 ; Frog, 113 ; Hydra, 340 ; Liver-fluke, 

 327; Mussel, 318; Pond-snail, 302; 

 Rabbit, 113 ; Snail, 302 ; Tapeworm, 333. 



PACINIAN CORPUSCLES Rabbit, 83. 

 Palatine bones Fowl, 153 ; Frog, 157 ; 



Rabbit, 145. 



foramina, anterior and posterior, 146. 



Pallia! line Mussel, 307. 



Pallium Mussel, 305. 



Palp, labial Cockroach, 258 ; Mussel, 



307. 

 mandibular Crayfish, 237 



25 



Palp, maxillary Cockroach, 258. 

 Pancreas Frog, 24 ; Pigeon, 47 ; Rabbit, 



38. 



development of, 125. 



Pancreatic juice, 184. 

 Papilla, foliata Rabbit, 14, 76. 

 Parachordal plates, 159. 

 Paraglossa Cockroach, 260. 

 Paramoecium, 351. 

 Paras phenoid Frog, 156. 



homologies of, 163. 



Parethmoid Rabbit, 145. 



Parietal bone Fowl, 150 ; Rabbit, 142. 



cells, 180. 



segment of skull Fowl, 149 ; Frog, 



155 ; Rabbit, 142. 

 Parieto-frontal bone Frog, 155. 

 Paroccipital process Rabbit, 141. 

 Parotid gland Rabbit, 37, 179. 

 Patella Rabbit, 175. 

 Pecten of eye Fowl, 131. 

 Pectineal process Fowl, 173. 

 Pectoral arch, or girdle, 169. 



fin Cod, 9. 



Peduncles of cerebellum, 217. 



of pineal body, 218. 



Pelvic arch, or girdle, 172. 



fins Cod, 9. 



Peptic glands, 79. See Glands, cardiac. 

 Pericardial cavity, chamber, or sinus 



Cockroach, 267 ; Cod, 33 ; Crayfish, 246 ; 



Frog, 25 ; Mussel, 313 ; Pigeon, 49 ; 



Rabbit, 40 ; Snail, 295. 

 Perichondrium, 69, 121. 

 Perilymph, 133. 

 Perimysium, 72. 

 Perineal gland, 14. 

 Perineurium, 74. 

 Periosteum, 70, 121. 

 Periotic bone Rabbit, 142, 146. 

 Periplaneta, 257. 

 Peristome Vorticella, 347. 

 Peristomium Earthworm, 282. 

 Peritoneum Frog, 23. 

 Peritricha, 351. 

 Pes Frog, 6 ; Pigeon, 18 ; Rabbit, 14. 



osteology of, 174. 



Petrous portion of periotic Rabbit, 146. 



Peyer's patches Rabbit, 38. 



Phagocytes, 188. 



Phalanges, 171, 174. 



Pharyngeal teeth Cod, 10. 



Pharynx, 10 Rabbit, 39. 



Physiology, xx., 55. 



Pia mater of brain, 44. 



Pigment cells Frog, 68. 



Pineal body, 218. 



Pinna Rabbit, 134. 



Pituitary body, 144, 218. 



space, 160. 



Placenta Rabbit, 112. 



Plant and animal compared, xvi. 



Planula Medusa, 344. 



Pleura Rabbit, 40. 



Pleurobranchise Crayfish, 239. 



Pleuron Crayfish, 233. 



Podical plate Cockroach, 258, 264. 



Podobranchiae Crayfish, 239. 



