INDEX. 
UINTACYON, 18, 29. 
edax, 29. 
massetericus, 30. 
massetericus rudis, 31. 
Uintanius, 448, 455. 
turriculorum, 456. 
Unio didymictidis, 124. 
eomargaron, 123. 
-grangeri, 122. 
leanus, 126. 
meekii, 126. 
sinope, 125. 
Uropsalis, 516. 
lyra, 516. 
Urosciurus, 178, 267, 300, 305. 
duida, 164, 268, 270, 292. . 
igniventris cocalis, 268, 273. 
igniventris igniventris, 268, 271. 
igniventris. toedifer, 268, 272. 
igniventris zamore, 268, 274. 
langsdorffi langsdorfh, 268, 276, 293. 
langsdorffi steinbachi, 268, 279. 
langsdorfii urucumus, 268, 278. 
pyrrhonotus, 268, 275, 293. 
pyrrhontus castus, 268, 276. 
tricolor, 164, 165, 268, 269, 292. 
VASSACYON, 17, 18, 39. 
promicrodon, 39, 41. 
Vestigial eleventh primary, 135. 
677 
Viviparus, 115. 
leidyi, 115. 
retusus, 115. 
trochiformis, 115. 
Viverravus, 17, 18, 27. 
acutus, 27. 
dawkinsianus, 28. 
gracilis, 27. 
politus, 28. 
Vulpavus, 18, 36. 
australis, 39. 
canavus, 37. 
palustris, 36. 
WASHAKIUS, 448, 453. 
insignis, 453. | 
Wheeler, William Morton, some addi- 
tions to the North American Ant- 
Fauna, 389-421. 
Wirrebocerra, 535. 
Woodpeckers, 138. 
XIPHOMYRMEX spinosus hispidus, 415. 
spinosus insons, 416. 
spinosus wheeleri, 416. 
Xystema havana, 144. 
Xiphorhynchus lachrymosus alarum, 
642. 
lachrymosus rostratus, 643. 
