22 FAUNA OF MAYFIELD'S CAVE. 



AMPHIBIA. 



Family PLETHEDONTIDAE. 



Plethedon ciuereus (Green). 



A specimen of variety cinereus was taken April 15, 1904, at "38," 

 under a stone, with some trash which had drifted in. The same day 

 another, of variety dorsalis, was taken crawhng on the mud at "29." 

 The occurrence of these was probably altogether fortuitous. They were 

 found two weeks after a violent flood which flushed the cave and washed 

 in drift and mud far in excess of what had been seen in the cave before. 

 Another specimen of variety cinereus was taken May 17, 1905. It was 

 well up the side of the wall to the right, just past the first turn. This 

 individual had without doubt entered the cave voluntarily. The occur- 

 rence of 5 specimens of variety cinereus and 1 of variety dorsalis on 

 the wall in the dark part of Donaldson's Cave, where they must volun- 

 tarily have gone, is evidence that this species is not averse to entering 

 a cave. 



Plethedon glutinosus (Green). 



A single specimen was found at the base of the wall at "6" in mid- 

 summer. It did not seem very active when picked up, but when brought 

 into the laboratory became very lively. Eigenmann (1901, 189) found 

 this species in Rock House Cave, Missouri. 



Spelerpes maculicaudus (Cope). Cave Salamander. 



An account of this species is published in the Proceedings of the 

 United States National Museum for 1906. * 



Family RANIDAE. 



Rana clamata Daudin. Green Frog. 



The green frog is not uncommon in caves. It has been noted in the 

 caves at Mitchell a number of times and in Mammoth Cave (Hubbard, 

 1880, 83). I found 2 in Mayfield's Cave, September 30, 1903. One 

 was 40 feet from the mouth of the cave and the other at " 40, " at the 

 edge of a pool. About the middle of October one was seen under a 

 shelf of rock opposite "6." It was quite dull and inactive. However, 

 it seemed quite sensitive to light and attempted to get away from it. 

 Two weeks later it was at almost the same spot, but November 7 it had 

 disappeared. The occurrence of frogs in caves is accidental. 



*Arthur M. Banta and Waldo L. McAtee. The life history of the cave salamander, 

 Spelerpes maculicaudus (Cope), Proc. U. S. Nat. Mus., No. 1443, vol. xxx, pp. 67-83, 

 with plates vin-x. 



