INDEX. 



709 



Lytta marginata, 373 



MACACUS, 620 



Machilis, 365 



Mackerel, 456 



Macrobiotus Americanus, 361 



Macropus thetidis, 577 



Mactra lateralis, 249 



ovalis, 251 



Madrepora cervicornis, 82 

 Ma?andrina, 80, 81, 84 

 Magpie, 554 

 Malacopoda, 355, 385 

 Malapterurus electricus, 449 

 Male fishes, obstetrical habits of, 



449, 461 



Mallotus villosus, 452 

 Mammalia, anatomy of, 564 

 characters of, 557, 628 

 development of, 566 

 ears of. 563 

 hair of, 561 

 horns of, 561 

 limbs of, 560 

 music of, 569 

 sexual differences of, 566 

 skeleton of, 558 

 teeth of, 562 



Mammals, development of, 649 

 Mammoth, 598 

 Man, embryology of, 650 

 origin of, 627 

 relation to apes, 624 

 skull, 626 

 varieties of, 627 

 Manatus, 595 

 Mandrill, 620 

 Manis, 580 

 Mantis, 369 

 Manubrium, 70 

 Marine animals, distribution of 



664 



Marmoset, 619 

 Mar supi alia, 574 



Marsipobranchii, characters of 

 409, 410 



Mastodon giganteum, 599 

 May fly, 367 

 Meckelia ingens, 218 

 Medusa, 59 

 Megalops, 313 

 Megapodius, 546 

 Megatherium, 579 

 Melanogrammus seglefinus, 458 

 Melipona, 385 

 Mellita testudinata, 123 

 Meloe angusticollis, 373 

 Melospiza, 555 

 Membranipora pilosa, 186 



solida, 180 

 Memory of animals, 681 

 Menhaden, 450 

 Menobranchus, 478 

 Menopoma Alleghaniensis, 479 

 Merostomata, 317, 326 

 Mesenteries of polyps, 75 

 Mesoderm, 6 



Mesogonistius chsetodon, 455 



Mesohippus, 602 



Mesozoa, 139 



Metabola, 364 



Metamorphosis, 651 



cf Batrachia, 476 



suppressed, 477, 485 



of Crustacea, 313 



of echinoderms, 105, 110, 112 



Metridium marginatum, 74 



Miastor, 653 



Microsauria, 482, 483 



Microstomum lineare, strobilation 

 in, 145 



Midas, 620 



Migrations of animals, 667 



Millepedes, 356 



Millepora alcicornis, 57 

 nodosa, 57 



Milnesium tardigradum, 361 



Mimicry, protective, 675 



Mimetes niger, 622 

 pithecus, 621 



Mind, in animals, 682 



Miohippus, 602 



