8. Red-backed Salamander. J'lclhoilon erythronotus. 

 Lf iigili, ihree-and-oiie-half inches ; gray-brown, with a red stripe aloni; tlie hack ; slender. Quite common. 



9. Stout Salamander. Ph-tlwdoti glutinosus. 

 Length, six inches ; hlaclc, with Ijliiish-gray spots and specks ; stouter than No. S. Terrestrial. 



10. Four-toed Salamander. J/t'»ii,/,n/y/ium smtatum. 

 Length, two-and-one-half inches ; brown, white underneath, with l>lack spots ; four toes on iiiiui feet. -Southern. 



II. Dark Blunt-nosed Salamander. .Unhlystoma (ipaaim. 



Lengtii, tiiree-and-one-haif inches; black, with fourteen blue-gray crossbars; belly, dark-blue. Western and 

 Southwestern. 



12. Tiger Salamander. Amhlysloma tigritium. 



Length, eiglit inches; dark lirown, with yellow crossbars and blotches; body, thick aiul strong. 



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