INDEX 



809 



Limbs (cont.) 



birds, 440, 512. 



camels, 751. 



carnivora, 682. 



chalicotheres, 731. 



chelonia, 394. 



crocodiles, 419. 



dinosaurs, 423. 



direction of movements, 299. 



edentata, 594, 600. 



elephants, 712. 



eutherians, 576. 



horses, 732. 



hyrax, 708. 



ichthyosaurs, 401. 



insectivores, 582. 



man, 616, 628, 635. 



marsupials, 559, 566. 



moles, 565, 583, 778. 



monotremes, 551. 



origin of, 307. 



perissodactyls, 696, 722. 



plesiosaurs, 399. 



primates, 605, 616, 618, 629, 633. 



pterodactyls, 427. 



reptiles, 373, 394, 411, 417, 4*9, 423, 

 428. 



rodents, 657. 



sea cows, 720. 



seals, 691. 



snakes, 411. 



synapsids, 540, 542. 



ungulates, 696. 



whales, 667. 

 Limb Muscles, amphibia, 308. 



birds, 418. 



fishes, 308. 



reptiles, 375. 

 Limnopithecus, 632. 

 Limnoscelis, 389. 

 Ling, 265. 

 Lion, 690. 

 Lipase, amphioxus, 34. 



Ciona, 62. 

 Lipotyphla, 584. 

 Litopterna, 703. 

 Liver, amphibia, 343. 



amphioxus, 32. 



elasmobranchs, 139. 



lamprey, 90. 

 Llama, 751. 

 Loach, 265. 

 Locomotion, actinopterygii, 133, 191, 



235. 244- 

 amphibia ; 303, 308, 317, 357. 

 amphioxus, 26. 

 Balanoglossus , 51. 

 birds, 440. 

 crocodiles, 419. 



dinosaurs, 423. 



earliest chordates, 766. 



elasmobranchs, 131. 



fishes, 133. 



giraffe, 757. 



Lampetra, 85. 



primates, 605, 616, 618, 629, 633. 



pterodactyls, 428. 



reptiles, 373, 411, 417, 419, 423, 428. 



sea cows, 720. 



seals, 691. 



snakes, 41 1. 



tunicates, 64, 69. 



ungulates, 696. 



whales, 666. 

 Loon, 516. 

 Lophius, 214, 223, 237, 248, 253, 257, 



262. 

 Lophophore, 58, 78. 

 Lorenzini, ampullae, 172. 

 Lorts, 609. 

 Lotka, A. J., 769. 

 Loxodonta, 709. 

 Luminescence, actinopterygii, 254. 



Pyrosoma, 72. 

 Lunaspis, 186. 

 Lungs, see Respiration. 



lung-fishes, 268. 

 Luscinia, 522. 

 Lutra, 686. 

 Lymphatics, actinopterygii, 202. 



amphibia, 338. 



birds, 471. 



dipnoi, 278. 



lamprey, 93. 

 Lyriocephalus , 407. 

 Lysorophus, 361. 



Macaca, 624. 

 Mackerel, 134, 246, 256. 

 Macraachenia, 703. 

 Macroclemmys, 398. 

 Macropetalichthyida, 186. 

 Macropus, 565. 

 Macroscelides, 584. 

 Magpie, 437. 

 Maigre, 218. 

 Malapterurus, 254. 



Mammals, characteristics, 534, 574, 

 767. 



classification, 532, 576. 



mesozoic, 536, 569. 



origin, 536, 569. 

 Mammonteas, 716. 

 Mamtnut, 716. 

 Mammuthus, 716. 

 Man, 633. 

 Manatus, 720. 

 Mandrilhis, 624. 



