A PECULIAR TOAD. 
F. L. WASHBURN, A.M. 
In 1896 Mr. J. R. Wetherbee, a student in our biological 
laboratory, was the recipient of a curious specimen, a toad 
(Bufo Columbiensts Baird and Girard) having an extra arm 
projecting at an angle from the left side just in front of the 
normal left arm. The species is not uncommon in parts of 
Oregon, but the finding of one with a fifth limb is of rare 
occurrence, possibly unknown hitherto. The abnormal arm 
was 3 centimeters in length. Apart from this peculiarity the 
specimen appeared and acted like any other toad, apparently 
in no way inconvenienced by this extraordinary lavishness of 
nature. The extra arm was supplied with 7 digits, and, though 
not provided with an elbow joint, it could be moved and was 
moved to a slight extent at the proximal joint next the body. 
139 
