INDEX 309 



PAGE 



Xenops, Mexican 30 



streaked 4° 



Xenops genibarbis mexicanus 3° 



rutilus heterurus 4° 



Xiphorhynchus lachrymosus eximius 30, 35 



lachrymosus lachrymosus 30, 3 2 



Xylopia grandiflora 37 



Y 



Yagouaroundi 170 



Yaguarundi 171 



Z 



Zahino 27, 73, 75 



Zeledonia coronata 40 



Ziphila centralis ■. 68 



Zone, arid lower tropical 34 



humid lower tropical 31 



lower tropical 26 



savanna and semiforested borders 36 



temperate 41 



upper tropical 38 



Zorro 27, 32, 45, 47, 53 



Zygodontomys 94 



brevicauda 95 



cherriei cherriei 27, 35, 37, 43, 94 



cherriei ventriosus 2j, 32, 43, 94, 239 



chrysomelas 104 



seorsus 27, 35, 43, 95, 237 



