PROCEEDINGS OF THE UNITED STATES NATIONAL MUSEUM 
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SMITHSONIAN INSTITUTION 
U. S. NATIONAL MUSEUM 
Vol. 95 Washington : 1945 No. 3185 
SUMMARY OF THE COLLECTIONS OF AMPHIBIANS MADE 
IN MEXICO UNDER THE WALTER RATHBON EK BACON 
TRAVELING SCHOLARSHIP 
By Epwarp H. Tayior and Hosart M. Smit 
INTRODUCTION 
By tenure of the Walter Rathbone Bacon Traveling Scholarship 
from 1938 to 1940, the junior author was enabled to continue field 
studies that had been under way several years on the herpetofauna of 
México. Aided by his wife, he accumulated a collection of reptiles 
and amphibians the study of which still continues. A brief summary 
of the snakes and crocodiles has appeared previously (Smith, 1943). 
With the aid of the senior author a summary of the amphibians has 
been completed and forms the basis of the present paper. The liz- 
ards are being studied as time permits, and a summary of them is 
contemplated. No survey of the turtles is envisioned. The itin- 
_erary and list of localities visited by the collectors will accompany a 
later report. 
The amphibians comprise 10,370 specimens, or about half the total 
number of herpetological specimens obtained. They represent 27 
genera and 146 forms. Thirty-three of the species were undescribed 
at the time of collecting; the specimens of them secured have formed 
the basis at least in part for their subsequent descriptions. Eleven 
of the 33 are represented only by paratypes, while 22 are represented 
by holotypes. Of the latter, eight are described in the present 
paper, while all others were described by Taylor (1940c, 1941b, 
d, e, 1942a-d, 1943a, b) or Smith (1939). Another 33 species, repre- 
sented by neither holotypes nor paratypes, are exemplified by topo- 
594124—45—__1 521 
