19 
Crotlaus viridis western rattlesnake 
0204.318, 0204.319, 0231.010, 0312.141, 0529.550, 0663.900, 0699.310, 0718.100, 0718.105, 
0736.500, 1003.500, 1050.169, 1071.100. 
Sistrurus catenatus Massasagua 
0204.319, 0231.010, 0312.141, 0393.080, 0480.304, 0522.200, 0630.001, 0718.100, 0718.105, 
0906.500, 1040.202, 1050.169, 1071.100. 
Sistrurus miliarius pigmy rattlesnake 
0231.010, 0312.141, 0377.130, 0522.200, 0626.510, 0630.001, 0704.258, 0718.100, 0718.105, 
1050.169, 1071.100. 
FOSSIL LITERATURE 
The fossil literature may or may not be keyed to extant species listed in this 
report. All literature to fossil species from Texas were taken from the Zoological Record. 
0055.200, 
0356.201, 
0573.810, 
0713.050, 
0880.500, 
0149.500, 
0384.210, 
0585.050, 
0720.231, 
0974.600, 
0198.420, 
0388.500, 
0625.401, 
0720.232, 
0974.601, 
0212.525, 
0495.085, 
0625.402, 
0720.234, 
0974.602, 
0216.210, 
0495.450, 
0625.403, 
0720.236, 
1071.750, 
0218.200, 
0508.050, 
0625.404, 
0732.115, 
1081.185, 
0278.050, 
0508.051, 
0700.010, 
0784.020, 
1081.187. 
0299.080, 
0508.052, 
0700.020, 
0784.065, 
0350.004, 
0526.201, 
0700.025, 
0794.350, 
Literature Cited 
Smith, H.M., and R.B. Smith. 1993. Synopsis of the Herpetofauna of Mexico. 
Volume VII. Bibliographic Addendum IV and Index, Bibliographic 
Addenda II-IV 1979-1991. University of Colorado Press, Niwot, 1082 Pp. 
