XX SYSTEMATIC INDEX. 



Family DELPHINID^ 78 



*Monodon monoceros ....*.. 78 



*Delphinapterus leucas . 79 



broccMi 79 



Orca citoniensis 80 



*Globicephalus melas 81 



uncidens 81 



*Tursiops tursio 84 



Genus non clet 84 



Order EDENTATA 85 



Family MEGATHEMID^ 85 



Megatherium americanum 86 



mirabile 90 



lundi 90 



Scelidotherium leptocephalum .... 92 



bravardi 96 



chiliense 99 



tarijense 102 



Mylodon darwini 105 



harlani 106 



robustus 107 



lettsomi 108 



armatus 110 



gracilis . Ill 



Megalonyx jefFersoni Ill 



Coelodon maquiuensis 113 



Family GLYPTODONTIDJE 114 



Glyptodon clavipes 11.5 



rcticulatus 117 



sp. rt. 120 



ouphractus 121 



Dtedicurus clavicaudatus 122 



Euryurus rudis 124 



Panochtbus tuberculutus 125 



