430 



Mesethmoid, 158. 

 Mesoarium, 106. 

 Mesoblast, 6. 

 Mesocardium, 106, 180. 

 Mesocolon, 105. 

 Mesodactyla, 393. 

 Mesoderm, 7. 

 Mesogaster, 105. 

 Mesohippus, 395. 

 Mesomere, 101. 

 Mesonephric duct, 119. 

 Mesonephros, 116, 118. 

 Mesonychidse, 411. 

 Mesonyx, 411. 

 Mesoplodon, 409. 

 Mesoptervgium, 175. 

 Mesorchium, 106. 

 Mesorectum, 105. 

 Mesothelium, 8. 

 Mesothelial structures, 100. 

 Mesovarium, 106, 126. 

 Metacarpus, 176. 

 Metacoele, 101, 103. 

 Metacone, 365. 

 Metaconule, 365. 

 Metanephros, 116. 

 Metapophysis, 141. 

 Metapterygium, 175. 

 Metatarsus, 176. 

 Metazoa, i. 

 Metencephalon, 50. 

 Miacidae, 411. 

 Mice, 390. 



Microchiroptera, 387. 

 Microconodon, 377. 

 Microgadus, 264. 

 Micromeres,222. 

 Micropterus, 259. 

 Microsauria, 283. 

 Micropyle, 207. 

 Midas, 415. 

 Mid brain, 48. 

 Middle zone, 101. 

 Mid gut, 36. 

 Midshipman, 266. 

 Milk dentition, 20. 

 Milk glands, 91. 

 Milk line, 354. 

 Mink, 412. 

 Mixosaurus, 313. 

 Moa, 346. 

 Moccasin, 326. 

 Mola, 267. 

 Molars, 364. 



INDEX. 





