640 



TEGUMENTARY ORGANS. 



of a distinct chromatogenous apparatus for secreting the 

 carbonaceous colouring matter or pigment-cells of the 



FIG. 146. 



-d 



epidermic scales, and of distinct blennogenous glands for 

 secreting the constituent matter or cytoblasts of the epider- 

 mis itself. 



Resting immediately on the subcutaneous cellular and 

 adipose substances (146. A. c. B. /.) is the inferior fibrous 

 reticulate layer (146. A. b. B. e.) of the cutis, of very variable 

 thickness in different animals, permeated by the subjacent 

 cellular substance, and in which are generally imbedded the 

 minute oil-glands (146. A. h.) of the piliferous follicles (146. 

 A./.) which contain the hairs (146. A. g.). The exterior 

 papillated layer (146. B. c.) of the cutis is more thin, compact 



