INDEX, 



451 



Mastodon ohioticum, 394. 



ohiolicus, 395, 397. 

 " rugatum, 396. 

 " tapiroides, 395. 

 Mastodonte, 393. 

 Mastodonte de I' Ohio, 393. 

 Mastoiherium, 395. 

 Mazama salinaria, 376. 

 Megalocnus rodens, 413. 

 Megalomeryx niobrarensis, 161, 382. 

 Megalonix, 411, 412. 

 Megalonyx, 412, 413. 

 Megalonyx, 411. 



cuhensis, 413. 

 dissimilis, 412. 

 Jeffersoui, 411, 446. 

 laqueatus, 412, 413. 

 potens, 412. 

 rodens, 413. 

 validus, 412. 

 Megaptera expansa, 442. 

 Megatherium, 411. 



fioreafe, 411. 

 " Cuvieri, 411. 



" Jeffersonii, 411. 



" mirabile, 411. 



Megatherium, 398, 411, 412. 

 Megistosaurus, 444. 

 Menodua, 390. 

 Merychyus, 115, 380. 



elegans, 118, 380. 

 major, 121, 380. 

 medius, 119, 380. 

 Merychippus, 292, 402. 



insignis, 294. 296, 402. 

 mirabilis, 294, 299, 327, 402. 

 Merycochoerus proprius, 110, 380. 

 Merycodus necatus, 162, 382. 

 Merycoidodon CulberUoni, 379. 

 Missourium theristoeaxdodon, 395. 

 Missurium, 395. 

 Morse, 416. 

 Moscbidaj, 165, 383. 

 Muridte, 342, 407. 

 Musk- Ox, 373. 



Musk-rat, 406. 

 Mustelidffi, 369. 

 Mylodon Harlani, 413. 

 Myomorphus cuhensis, 413. 

 Myxophagus spelseus, 445. 



Nanehyus porcinus, 200, 389. 

 Neotoma floridana, 407, 446. 



" magister, 407. 

 Nephrosteon, 444. 



Odocoileus spelccus, 376. 

 Ohio- Elephant, 394. 

 Ohio-Incogniium, 392. 

 Omomya Carteri, 408. 

 Ontocetus Emmon.si, 440. 

 Onychotherium, 412. 

 Oreodontidaj, 71, 379. 

 Oreodon, 72, 379. 



" affinis, 105, 380. 



" bullatus, 106, 380. 



" Culbertsoni, 86, 107, 379. 



" gracilis, 94, 107, 379. 



" bybridus, 105, 380. 



" major, 99, 380. 



" ^jrisct«»i, 379. 



" robustum, 379. 

 Oromys jEsopi, 407. 

 Orycterocetus cornutidens, 437. 

 " cornutidens, 436. 



" erocodilinus, 437. 



" quadratidens, 436. 



Orycterotherium missouriense, 413. 

 " oregonensis, 413. 



Osteopera platycephala, 444. 

 Ovibos, 373. 



" bombifrons, 374. 



" cavifrons, 374. 



" niaximus, 374 



" moscbatus, 373. 



" j)riscus, 374. 

 Ovis maiiiiiiinaris, 375. 

 Ox, 371, 372. 



Paltuocastor nebrascensis, 338, 406. 

 Pabxolagus Haydeni, 331, 404. 



