'9°9-] THE CAYUGA LAKE BASIN, N. Y. 403 



69. Plethodonerythronotus (Green). Red-backed salamander, gray 



salamander. 



Common. Found usually in dry places under stones or any 

 object which will furnish cover. They appear from hibernation the 

 last of March or the first of April. The earliest date upon which 

 they have been recorded in the spring is March 17, 1903. The latest 

 date on which they have been observed in the fall is November i, 

 1903. The eggs are deposited during June and July, under logs, 

 loose bark or in decaying wood, in bunches of from seven to twelve. 

 Each egg is attached by a slender cord to a common focus and the 

 whole cluster is attended by the female. The young transform im- 

 mediately after hatching. There is every possible gradation be- 

 tween the red-backed and gray forms. ^^ During the summer of 

 1908 a pure red individual was found at Chautauqua, N. Y. 



70. Plethodon glutinosus (Green). Slimy salamander. 

 Common but limited to certain localities. Found usually in 



moist humus, manure piles, damp moss banks and decaying vegeta- 

 tion. Its breeding habits are not known. 



71. GyrinopMlus porphyriticus (Green). Purple salamander. 

 Common. Found in all cold springs and streams flowing 



through gorges or ravines. They remain in the larval stage for a 

 period of two years, at least. The only record of transformation 

 which we have obtained is a specimen 11.5 cm. long found March 14, 

 1903, in which the larval characteristics have almost entirely disap- 

 peared. A female taken May 12, 1906, with mature eggs in the 

 ovaries and what appeared to be a larva not long after hatching 

 taken from a cold brook June 29, 1901, are the only clues we have 

 to the breeding habits. 



72. Spelerpes bislineatus (Green). Two-lined salamander. 

 Common in and about cold swift brooks. The breeding habits' 



have not been observed in this locality. 



" Reed, H. D., " A Note on the Coloration of Plethodon cinereus," Am. 

 Nat., Vol. 42, 1908. 



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