iSSS.] 



Correspondence. 



213 



Figure i. — Left lateral view of a plucked specimen of Harris's Woodpecker {D. v. 

 karrisii), ad. c?, life size, by the author, from the specimen; d, upperpart of the 'infe- 

 rior space" {Apt. mesogastrxl) ; k, the uropygial gland of the left side ; /, its external 

 papilla with opening at its summit, which is also tufted. 



Nitzsch says of it, that "On the head the vertical space is especially 

 remarkable, a band destitute of contour-feathers extending from the base 

 of the beak, over the forehead to the occiput, which I find in all Wood- 

 peckers" (p. 96). As I have already shown in my 'Forest and Stream' 

 article, and here reproduced in Fig. 5, this feature is totally absent in 



