Lyncodun: 4S;, 491. 504. 5^5, 

 Lyncoilon lujanensis: 476. 483, 

 Lyncoilnn patagonicus: 501. 



Ma 



us: 5--\ 5-'7. 5JS. 



uchenia: 465, 47-. 48S. 489, 492 



51S, 5--3. 

 Macrauchenia antiqua: 461, 469. 

 Macrauclienia holiviensis: 477, 484. 534. 

 Macrauchenia ensenadensís: 477, 484, 534. 

 Macrauchenia patachonica: 477, 484, 534. 

 Macrauchenidae: 397, 452, 458, 461, 466, 469, 



473. 477, 490, 493- 

 Macrocyon: 487, 491, 525. 

 Macrocyon robustus: 476, 483, 533. 

 Macroeuphractus: 364, 380, 382, 472, 521. 

 Macroeuphractns retusus: 364, 471. 549* 

 Macropoda: 398, 401, 428. 

 Macropodidae: 39S, 405. 

 Macropristidae: 398. 

 Macropristis: 428, 506. 

 Macropristis Marslii: 449. 

 Macroscelidae: 39S. 

 Macrotheridae: 399. 

 ^lacrotherium: 5-1, 5^5- • 

 Machaerodus: 487, 489, 521, 525, 527. 529. 

 Machaerodus ensenadensís: 476, 4S3, 534. 

 Machaerodus Pradosi: 534. 



Ma 



aHa: 



3-' I 



Manidae: 399. 



Manís: 12, 530. 



Manteodon: 510. 



Martes: 520, 525, 527, 529. 



Mastodon: 472, 488, 489, 492, 497, 519, 524, 



Mastodon andium: 443, 478, 485. 535. 

 Mastodon argentinus: 470, 478, 485, 535- 

 Mastodon Huraboldtí: 443, 444, 478, 485, 535. 

 Mastodon platensis: 478, 485, 535. 

 Mastodon rectus: 443, 470, 478, 485, 535. 

 Mastodon superbus: 444, 478, 485, 496, 535. 

 Mephitis: 487. 491, 497, 504, 525, 529. 

 Mephítis cordubensis: 476, 483. 

 Mephitis fossilis: 533. 

 Mephitis mercedensis: 476. 483, 533. 

 Mephitis primaeva: 476, 483, 533. 

 Mephitis suffocans: 4S3, 495, 501, 533. 

 Megacerops: 518. 

 Megalochnus: 16, 20, 35. 3^. 86, 88, 89, 108. 



109. 

 Megalochnus rodens: 108, iii, 

 Megalonychidae: 22, 6¿, 174. 175, 176, 399. 



444. 453. 458, 462, 467, 473, 478, 490, 493. 

 Megalonyx: 52, 63, 64, 65, 66, 73. 79, 81, 82, 



83, 84, 86, 87, 88, 89. 91, 9-'. 93. 95. no, 



113. 115. 137. J47. 5-:6. 5-V- 

 Megalonyx maquinensis: 79, 

 Megalonyx meridionalis: 65, 66. 

 Megalonyx Jeffersoni: 64, 66, 79, 81. 

 Megalonyx Kaupi: 79, 

 Megamys: 414, 416. 418. 4r9, 463, 464. 472, 



515. 5 19. 



Megamys líui nieísterí : 460. 



Megamys depressidens: 460. 



Megamys formosus: 418, 468. 



Megamys Hülmbei"gi: 417, 4O0. 



Megamys Laurillardí: 417, 419, 460. 



Megamys patagoniensis: 416, 418, 460. 



Megamys praependens: 418, 460. 



Megamys Racedoi: 417, 460. 



Megapteía: 391, 392. 



Megapteva Ilurmeísterí: 391. 



Megatheridae: 22, 47, 51, 52, 81. 174, 175, 

 176, 399. 453. 458, 462, 466, 470, 473, 47S, 

 490. 493. 496, 498. 



Megatherium: 17. 18, 20, 23, 24, 27, 28, 30. 

 31. 32. ii, 34. 35. 36. 37. 38, 39, 42, 43. 

 45. 46, 47, 48, 49. 50. 51, 52, O4, 65, 66, 

 67, 70, 77, 78, 79, 80, 84. 85, 86, 90, 91, 

 9-. 95. 99. 108, 114, 1:5, 117, 140, 142, 147, 

 148, )49. 156. "57, 175. ^77, 178, 444, 447. 

 465, 472, 488, 489, 492, 497, 516, 521, 526, 

 527, 530, 540. 



Megatherium americanum: 



18, 27, 28. 30 



32, 33, 34. 35. 46, 47. 478, 485, 496, 535- 



Megatheri 

 Megatheri 

 Megatheri 

 Megatheri 

 Megatheri 



ntiquum; 32 

 jstrale: 27. 



FilhoH: 30. 

 Gaudryi: 32, 33. 



Megatherium Gervai 

 Megatherium Leidyi 



Lundi: 3 

 Medinae: 

 mirabile: 

 tarijense: 



Megatheriu 

 Megatheriu 

 Megatheriu 

 Megatheriu 

 Meles: 5:^9. 

 Mellivora: 525. 

 Mellivorodon: 525. 

 Meniscoessus : 511. 

 Meniscomys: 519. 

 Meniscotheridae: 396. 



32. 478. 485. 535 



30, 31. 478, 485. 535 



Me 



cothf 



509- 



Menodontida 



397- 

 Menodus: 51S. 

 Menotherium: 517. 

 Merichyppus: 523. 

 Merycochoerus: 518, 523. 

 Merycopotamidae: 397. 

 Merycopotamus : 5 24. 

 Mesacodon: 508. 

 Mesodectes: 520. 

 Mesodon Zeballosi: 144- 

 Mesolama: 488, 489, 524, 527. 

 Mesolama angustimaxilla: 477, * 

 Mesomys mordax: 532. 

 Mesomys spinosus: 532. 

 Mesonychidae; 398. 

 Mesonyx: 512. 

 Mesopithecus: 522. 

 Mesorhinus: 465, 515. 

 Mesorhinus pyramidatus 

 Metalophodon: 510. 

 Metriotherium: 509. 

 Miacis: 512, 516. 

 Micloénus: 511. 



461. 



