MANUAL OF ZOOLOGY 



SECT. 



FIG. 28. Various forms of epithelium, a, ciliated epithelium ; />, columnar ; </, sur- 

 face view of the same ; c, tesselated ; t, the same from the surface ; /, flagellate 

 epithelium with collars ; g, flagellate epithelium without collars ; h, epithelium 

 of intestine with pseudopodia ; /', stratified epithelium ; k, deric epithelium of a 

 marine planarian with pigment cells, rod-ceils, and sub-epithelial glands. (From 

 Lang's Comparative Anatomy.} 



