

/Ji'^ 







PLATE 2 



f/pper; Section (much enlarged) through the ventral dermal gland of 

 niale Teonoma nnerea, showing specialized sel^aceous glands for secretin- 

 the scent characteristic of these animals. 



Lower: A captive female wood rat {Homodonlomys) with three voun- 

 attached to nipples. Photo, by P. F. English. 



