Edward B. Knobel, The turtles, snakes, frogs and other reptiles and amphibians of New England and the north (1896)
“ Length, sixty inches; stout; light gray-brown, with three rows of red brown, dark-brown or black spots, more or less confluent; sometimes spots blurr, forming zigzag bands or broad cross bars; head, broad and triangular; forehead covered with scales not larger than those of the back ”
