1909.] THE CAYUGA LAKE BASIN, N. Y. 407 



86. Coluber obsoletus obsoletus Say. Racer. 



Rare. Only four specimens recorded for the basin. Two of 

 these were taken June 14, 1883, one during the summer of 1889 

 and the fourth, a specimen five feet long, was captured alive at New- 

 field in August, 1899. 



87. Lampropeltis doliatus triangulus (Boie). Milk snake. 

 Common throughout the basin. 



88. Lampropeltis doliatus collaris (Cope). 



One specimen taken June 16, 1903. So far as we know this is 

 the first record of this variety for the state. The specimen agrees 

 with Cope's figure and'description and with a specimen of collaris 

 taken at Danville, 111. 



89. Natrix sipedon (Linnjeus). Water snake. 



Abundant throughout the basin, especially in the marshes where 

 on clear days they are found coiled on stools of dead sedges. 



90. Storeria occipitomaculata (Storer). Red-bellied snake. 

 Common throughout the basin under logs, pieces of bark and 



dead leaves along hillsides and dry places. In the fall they are seen 

 in the open upon lawns, roads and walks. The earliest spring 

 record is March 18, 1903. The latest fall record is October 21, 1906. 



91. Thamnophis saurita (Linnaeus). Ribbon snake. 



Common, especially in the lowlands and moist meadows. The 

 earliest spring record is March 19, 1905. The latest they have been 

 seen in the fall is October 30, 1901. 



92. Thamnophis sirtalis sirtalis (Linnaeus). Striped garter snake. 

 This is the most abundant snake in the basin. They appear in 



the spring about the first of April and are abroad until the last of 

 October. 



31. Family Crotalid^. The Pit Vipers. 



93. Crotalus horridus Linnaeus. Common rattlesnake. 

 Formerly abundant. They are still met with about McLean. 



