INDEX 



719 



Lygosoma, 538. 



Lymantrida, 353. 



Lymncea, 160, 258, 259, 271. 



Lymph, 490. 



Lymphatic system, 407, 638. 



Lynx, 656. 



Mabuia, 538. 



Mackerel, 444, 468, 469, 474. 



Macrobdella, 239. 



Macrobiotus, 384. 



Macrochelys, 535, 540, 541. 



Macrodadylus, 362. 



Macrodrili, 236. 



Macromere, 272, 507, 508. 



Macropodidce, 647 ; Macro pus, 642. 



Macroscclidida, 650. 



Mactra, 262. 



Madrepora, 142; Madreporaria, 137, 141. 



Madreporite, 190, 193, 200, 202, 203, 206, 



207. 

 Magellania, 185. 

 Malacobdella, 177. 

 Malacoclemmys, 542. 

 Maiacoptcrygii, 443. 

 Malacostraca, 294, 301-302. 

 Malaria, 50-52; parasite of, 50. 

 Mallophaga, 337, 341. 

 Malpighian, body, 491 ; tubule, 310, 311, 



318, 320, 373, 375. 

 Mammalia, 401, 632-690, 694. 

 Man, 644, 662 ; races of, 667, 696. 

 Manatee, 645, 673 ; Manatus, 645, 673. 

 Mandible, 278, 279, 313. 

 Manis, 643, 661, 662. 

 Mantidce, 343; Mantis, 332, 343. 

 Mantle, of mollusks, 242, 246, 247, 253, 



265, 270. 

 Manubrium, 120, 121, 123. 

 Margarita, 258. 

 Margaropus, 380. 

 Marmosa, 648. 

 Marmoset, 662, 663. 

 Marmota, 659. 



Marsupialia, 642, 647-649, 694, 696. 

 Marsupium, 250. 

 Martens, 652, 655. 

 Massasauga, 569. 

 Mastax, 181, 182. 

 Mastigameba, 45. 

 Mastigophora, 41-48, 70. 

 Mastodon, 687. 



Maturation, 81, 82, 83. 



Maxillae, of crayfish, 277, 279; frog, 493, 



494 ; honey-bee, 313 ; perch, 436, 437 ; 



spider, 372. 

 Maxilliped, 279, 280. 

 Meandrina, 141, 142. 

 Meantes, 511, 514. 

 Mecoptera, 337, 349. 

 Medulla oblongata, 427, 501, 502. 

 Medullary, fold, 507, 508; groove, 507, 



508. 

 Medusa, 120, 121; bud, 120, 121. 

 Megachile, 366. 

 Megachiroptera, 650. 

 Megalobatrachus, 514. 

 Meganycliphanes, 297. 

 Mcgaptera, 675. 



Melanoplus, 329, 336, 344, 345. 

 Meleagris, 606. 

 Meloida, 363. 

 Melophagus, 359. 

 Melospiza, 615. 



Membranous labyrinth, 410, 411. 

 Menisccessus, 685. 

 Menopon, 341, 342. 

 Mentum, 313. 

 Mcnura, 617. 

 Mephitis, 643, 655. 

 Merganser, 603 ; McrgincB, 603. 

 Meroblastic egg, 86. 

 Mesenteric filaments, 135, 136. 

 Mesentery, 132, 135, 136. 

 Mesoderm, 88, 89, 148. 

 Mesoglea, 109, no. 

 Mesohippus, 699, 700. 

 Mesosoma, 378. 

 Mesosternum, 495, 496. 

 Mesothorax, 314. 

 Mesozoa, 176-177. 

 Mesozoic Era, 697. 



Metabolism, 10, 19-20, 29, 55, 102, 270. 

 Metacarpals, 404, 497. 

 Metagenesis, 80-81, 122. 

 Metamere, 90. 



Metamerism, 90, 91, 240, 401. 

 Metamorphosis, of insects, 334 _ 336; 



tunicates, 392. 

 Metaphase of mitosis, 15, 16. 

 Metaplasm, 13. 

 Metapleural fold, 394, 395. 

 Metasoma, 378. 

 Metatarsus, 372, 497. 



