AMEGHINO: LES FORMATIONS SÉDIMENT AIRES. 559 



Plesiarctomys, 408. 



Plesiospermophilus, 244. 



Plesiphenacodus, 295. 



Plesioxotodon, 487. 



Pleuraspidotherium Aumonieri, 289. 



Pleurocoelodon, 472. 



Pleurostylodou, 468. 



Pleurotomaria tardensis, 509. 



PleurystyJops, 408. 



Plexochoerus, 481, 502. 



Plexotemnus, 468. 



Plicatodon, 486, 488. 



Pliodolops, 3G0, 468. 



Pliodolops primulus, 359. 



Pliohyrax, 314. 



Pliohyrax graecus, 314, 315. 



Pliolagostomus, 241, 478. 



Pliomorphus, 252, 482, 502. 



Pliostylops, 468. 



Plohophorus, 482, 484, 485. 



Plohophorus Ameghinoi, 501. 



Plohophorus figuratus, 501. 



Pododesmus valchetanus, 50, 53. 



Polydolops, 95, 358, 468, 507. 



Polydolopos Thomasi, 358. 



Polymastodon, 284, 361. 



Polymastodon taoensis, 361. 



Polynices fámula, 515. 



Polynices puntarenasensis, 515. 



Polyptychodon patagonicus, 61. 



Polystylops, 467. 



Pontistes, 502. 



Pontivaga, 481. 



Pontivaga Fischeri, 502. 



Pontoplanodes, 481, 502. 



Pontoplanodes argentinus, 502. 



Porella, 199, 200. 



Porella escharella, 190, 197. 



Porotemnus, 468. 



Portheus, 186, 187. 



Portheus patagonicus, 183, 505, 521. 



Posteutatus, 468. 



Postpithecus, 293, 467. 



Postpithecus curvicrista, 292. 



Postpithecus reí'lpxus, 292. 



Potamarchus, 481, 502. 



Potámides patagonensis. 48, 54, 55, 59, 



68, 506, 510. 

 Prepanorthus, 478. 

 Prepotheriuui, 212, 477, 479. 

 Priodontaspis, 186. 

 Priodontaspis Bravardi, 183. 

 Priodontaspis Valentini, 178, 183. 

 Priodontes, 379, 440, 492. 



Priodontes giganteus, 381. 

 Proadiantus, 347, 471, 474, 476. 

 Proadiaiitus pungidens, 345. 

 Proadinotherium, 471, 474. 

 Proalligator, 502. 

 Proarctotherium, 397, 398, 482. 

 Proasmodeus, 470. 

 Proatherura, 413, 484. 

 Proatherura formosa, 413. 

 Proborhyaena, 352, 471, 472, 506. 

 Proboscina, 199. 

 Proboscina laevigata, 191. 

 Proboscina microstoma, 191. 

 Procardiotherium, 481. 

 Procavia, 305, 310. 

 Procavia capensis, 311. 

 Prochalicotherium, 318, 474, 505. 

 Procladosictis, 352, 468, 470. 

 Procladosictis anómala, 354, 355. 

 Procolpodon, 469. 

 Procyon. 491. 



Prodasypus, 472, 475, 477, 480. 

 Prodelphinus, 492. 

 Prodidelphys, 388, 479. 

 Prodidelphys obtusa, 888. 

 Prodremotherium, 344. 

 Proectocion, 307, 4*^7. 

 Proectocion argentinus, 307. 

 Proectocion precisus, 307. 

 Proeuphractus, 472, 480, 482, 484, 485. 

 Proeuphractus Scalabrinii, 501. 

 Proeutatus, 212, 215, 475, 477, 480. 

 Progalaeopithecus, 471. 

 Progalaeopithecus fissurellatus, 348. 

 Progalaeopithecus Tournouéri, 349. 

 Progarzonia, 358, 468. 

 Prohegetotherium, 471. 

 Prohyracotherium, 306, 467. 

 Prohyracotherium medíale, 307. 

 Prohyracotherium patagonicum, 306. 

 Prolagostomus. 241, 478. 

 Prolagus, 243, 3'^8. 

 Prolicaphrium, 215, 474, 505. 

 Promacrauchenia, 483,484, 486, 500. 

 Promacrauchenia antiqua, 501. 

 Promacrauchenia calceolata, 501. 

 Promacrauchenia ensenadense, 509. 

 Promegatherium, 252, 2H8, 482, 503 

 Promoeritherium, 336, 341, 470. 

 Promoeritherium australe, 333. 

 Promops, 492. 

 Promylodon, 482. 



Promyrmephagus euryarthrus, 378, 479. 

 Promysops, 4()8, 470. 



