

«*'.*. %. 



•v^ 









Fig. 29. Albino Timber Rattlesnake, Crotalua horridus. Albinism among serpents 

 is fairly frequent. This specimen was discovered at Black Rock, near Sheffield, 

 Massachusetts. It was twenty-five inches long. A second specimen, apparently a 



year older, was found at the same den the following year. 

 Fig. 30. {Lower) Timber Rattlesnake, Crotalua horridus. Typical example of the 

 species of rattlesnake broadly distributed over the northeastern area in the neigh- 

 borhood of mountains and ridges. Yellow and blackish examples are equally common. 



