EXPLANATION OF PLATE 15. 



Fig. 1. — Pseudotriton ruber vioscai, subsp. nov. A young adult, actual 

 length 118 mm., photographed from life. From Bogalusa, La., February 13, 

 1928. Note the light flecks on the head, legs, and sides of body. 



Fig. 2. — Same. Larva, actual length 75 mm., photographed from life. 

 From Bogalusa, La., February 13, 1928. The tip of the tail is in the proc- 

 ess of regeneration. 



Fig. 3. — Same. Old adult, the type, posed and photographed after having 

 been in preservative. Actual length 148 mm. From Bogalusa, La., April 10, 

 1926. • 



Fig. 4. — Pseudotriton ruber ruber (Sonnini). Young adult in which the dark 

 spots are still fairly conspicuous on a bright red ground color. Actual length 

 123 mm.; photographed from life. From Voorheesville, N. Y., November 4, 

 1922. 



Fig. 5. — Same. Larva, actual length 8S mm., photographed from life. 

 From Voorheesville, N. Y., April 5, 1924. 



Fig. 6. — Same. Old adult, actual length 150 mm., photographed from life. 

 In this the dark spots have largely fused and the ground color has become 

 much darker. From Voorheesville, N. Y., April 27, 1923. 



(All photographs by Mr. E. J. Stein.) 



