AMPHIBIANS. 



33 



The eggs are fonnd in grape-like bunches of from six to eleven 

 attached to the under surface of stones or the bark of decaying trees 

 and are brooded b}^ the female. They are laid, according to Hahn 

 (1008), in May, but have not been found at Ann Arbor until June 

 (Smith, 1882). The writers took eggs in a late stage of develop- 



DOMINION OF CANADA 



I L L I N IS 



Fig. 7. Distribution of Plethodon erijihronotus. 

 Horizontal ruling, specimens examined; vertical ruling, reports only. 



ment at Port Austin, Huron Count}^, Aug. 5, 1911. The larvae, 

 which are at first provided with branchiae, are usually found with 

 the parents and are apparently fed by them. When young the ani- 

 mal is very light in color, growing darker with age. 



Prof. Cope (1889) recognizes two sub-species of Plethodon, P. 

 5 



