External Parasites 



223 





Fig. 45. — Section of the skin of the leg of a fowl affected with scaly leg. 



a. Papilla with pigment cells. 



h. Lymphatic tissue in the papilla. 



c. Epidermis : stratum profundum. 



d. Epidermis : stratum corneum. 



e. Section through a mite. 



e. Section through a mite showing head and 2 pairs of legs. 



/. Young mite. 



g. Cavity excavated by mites. 



h. Excrement of mite. 



i. Horny layer between the mite excavations. 



(From Haiduk, after Olt.) 



