AN ANNOTATED LIST OF THE AMPHIBIANS AND 
REPTILES OF JEFFERSON COUNTY, MISSOURI 
By Dorotuy A. Boyer and ALBERT A. HEINZE 
Kimmswick, Mo. 
The following notes on = herpetology of Jefferson County, 
Missouri, are offered as the first of a series of papers on the subject 
from this county. Jefferson rear was selected for this study 
first, because of its accessibility from St. Louis City and its popu- 
larity with the summer yeas from that city; sggior because 
it was the home of one of authors for many years and is there- 
fore familiar; and third, hoe of its interesting eel ced 
ation and contours. Located as it is, in the foothills of the Ozar' 
2s includes many hills and wide valleys within its boundaries, which 
ed by the Mississippi on the East, and partially by the 
Mer ramec River on the North, by Big River on the West, and by 
Isle Du Bois Creek on the South. This county is amply pacer at 
with those agencies which contribute to the dissemination and dis- 
tribution of water inhabiting animals. Sandstone and limestone 
bluffs furnish the necessary retreats or dens for certain species. Al- 
though much of the woodland has cleared, much has escaped 
the ax, with the result that ge is still a forest that is suitable 
to such species as require the sylvan 
Because of the individual —— of the authors it has been 
possible to divide this work most satisfactorily, the junior author 
having prepared the papers on co amphibians, and the senior author 
having been responsible for the reptile notes. 
The writers wish to take this Be gerard to extend their special 
thanks to Dr. Charles E. end Satine vapeenth College, Winfield, 
Kansas, for his courtesy in g the present paper. They wish 
also to acknowledge the kindly peg Fanaa by the following: Drs. 
E. R. Dunn, A. H. Wright, Frank N. Blanchard, E. H. Taylor, and 
Mr. Norman Hartweg in the determination of specimens; to Messrs. 
Roger Conse, R. Marlin Perkins, and Harold I. O’Byrne for timely 
d helpful criticisms, and to Mr. Leslie Hubricht for valu- 
able aid i in the ‘eollaation: of the ‘aed which has made the present 
paper possible. 
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