436 



Index 



Vipera berus, 



food of, 232 

 Viperidac, 202 



Crotalinae, 206 



feeding method of, 200, 202, 208 



Viperinae, 206 

 fangs of, 206 

 food of, 232 

 Vireo, northern active, 100 

 Virconidae, 100 



distribution, 



Orinoco and New York, 111 

 Vireosylva chivi agilis, 100 

 Volatinia jacarini splendens, 327 

 Vulture, 70, 327 



Black, 79, 330, 331 



King, 329, 330 



North American Turkey, 331 



Venezuelan Turkey, 79 



W 



Warber, Trinidad, 101 

 Wasps, 



Cassique, yellow-backed nesting near, 

 106, 107 

 Water snake, (fig. 79), 200*, 204 



common, (fig. 88), 216* . 

 Water-thrush, Northern, 337 

 Weber, Max, 



quoted on : Shark, whale, 367 

 Whip Snake, 218 

 Whitman, C. O. (Prof.), 



quoted on : 



orthogenetic variation, 31 

 Woodhewer, 327 



Cocoa, 93 

 Woodhewer, Lesser striped, 94 

 Woodpecker, 



Brown-crested Cocoa, 91 



Earth-colored, 91 



Great Ivory-billed, 92 



Great Red-crested, 92 



Guatemalan Ivory-billed, 334 



Red-and-green, 91 



Yellow, 91, 91* 



Yellow-crested cocoa, 91 

 Worm snake, 202 

 Wren, 



Venezuelan House, 99 

 Wright, E. Perceval, 



quoted on : 



Shark, whale, 359, 360 



Yellow-throat, Venezuelan, 100 



Zaevius calocore, (fig. 41, No. 3), 125,* 



126, 127 

 Zamenis, 200 



constrictor, 218 

 food of, 218 



flagelliforme, 218, (fig. 89), 218* 

 food of, 218, 219 



food of, 217, 218 



Korros, 218 



mucosis, (fig. 80), 203* 



mucosus, 218 

 Zaocys, 



food of, 217 

 Zarhychus wagleri zvagleri, (Gray),' 342 

 Zatrephes cardytera, (fig. 41, No. 2), 



125,* 126 

 Zenaida aurita, 



melanism of, 16 

 Zenaidtira macroura, 



coloring of wings, 29 

 Zonotrichia albicollis, 



melanism, experimerts in, 19-21, 21* 

 Zonotrichia querula, 



melanism of, 21 



