Sio 



INDEX 



Montis, 60 1. 



Mantipus, 302. 



Marmoset, 621. 



Marmota, 657. 



Marsupials, 538, 557, 563. 



Mauthner cell, 101. 



Megaladapis, 610. 



Megalobatrachus, 358, 364. 



Megalohyrax, 709. 



Megapodes, 518. 



Megatherium, 596. 



Melanin, 255. 



Melanophores, see Chromatophores. 



Colour change. 

 Meleagris, 518. 

 Meles, 686. 

 Meniscotherium, 701. 

 Menotyphla, 584. 

 Menstruation, 607, 616, 620, 623, 



630. 

 Mephitis, 686. 

 Merops, 521. 

 Merychippus, 736. 

 Merycoidodon, 748. 

 Mesichthyes, 237. 

 Mesoderm, see Coelom. 

 Mesohippus, 736. 

 Mesolithic culture, 648. 

 Mesonephros, see Excretion. 

 Mesonyx, 683. 

 Mesopithecus, 626. 

 Metacheiromys, 594. 

 Metamerism, see Segmentation. 

 Metamorphosis, amphibia, 342. 



amphioxus, 44. 



Balanoglossus, 57. 



Lampetra, 118. 



tunicates, 69. 

 Metapleural folds, 28. 

 Miacidae, 684. 

 Microbrachis, 361. 

 Microdon, 236. 

 Micropodiformes, 520. 

 Microsauria, 361. 

 Microtus, 660. 



Migration, actinopterygii, 205, 221, 

 226. 



amphibia, 354. 



birds, 493. 



eels, 226. 



lamprey, 1 12. 



trout, 205. 

 Milk, birds, 469. 



marsupials, 561. 



monotremes, 551. 



whales, 673. 

 Milk-fish, 281. 

 Milvus, 459. 

 Minnow, 252. 



Miobatrachus, 361. 

 Mioclaenus, 700. 

 Michippus, 736. 

 Moa, 514. 

 Mobula, 182. 

 Mocking-bird, 525. 

 Moeritherium, 713. 

 Mola, 246. 

 Mole, 565, 583, 778. 

 Molgida, 62. 

 Mongoose, 689. 

 Monitor lizard, 409. 

 Monodon, 674. 

 Monotremes, 538, 546. 

 Moorhen, 518. 

 Mordacia, 121. 

 Mormyridae, 217, 254. 

 Moropus, 731. 

 Mosasaurs, 409. 

 Moschops, 541. 

 Moschus, 755. 

 Motacilla, 521. 

 Moulting, amphibia, 298. 



birds, 434. 



mouse, 659. 

 Mouse-deer, 754. 

 Mouth, actinopterygii, 193. 



agnatha, 127, 129. 



amphioxus, 30. 



Balanoglossus, 52. 



gnathostomata, 142. 



insect-eaters, 778. 



Lampetra, 88. 



origin, 142. 



tunicates, 61, 70. 

 Moy-Thomas, J. A., 188. 

 Muco-cartilage, 86. 

 Mud-skipper, 250. 

 Mugil, 237. 

 Muller's fibres, 100. 

 Muller's organ, 31, 45. 

 Multituberculata, 537, 547. 

 Muraenosaurus, 399. 

 Muridae, 659. 

 Muscicapa, 523. 

 Muscles, amphibia, 302, 318. 



amphioxus, 26. 



ascidian tadpole, 68. 



birds, 439. 



elasmobranchs, 132. 



fishes, 133, 178, 200. 



lamprey, 85. 



nomenclature of, 319. 



reptiles, 375. 

 Musk-deer, 713. 

 Mustela, 686. 

 Mustelus, 137, 152, 164, 170, 



181. 

 Mutica, 666. 



