460 



ZOOLOGY 



SECT. 



The Earthworm is devoid of organs of sight or hearing. It 

 exhibits sensitiveness to bright light, the sensitive elements being 

 large cells of the epidermis devoid of pigment. The sense of 



COG 



exl 



JL 



FIG. 3ti-2. Nephridium of JiUtnbricus (diagrammatic). a. ampulla between ciliated and non- 

 ciliated parts of the intraccllular canal; cif. ciliated part of the intracellular canal; <<> . 

 investment derived from the coelomic epithelium ; ex!, nephridiopore ; I.e. non-ciliated part 

 of the intracellular canal ; men. septum ; nxt. nephrostome ; t.v. intercellular canal of the 

 terminal vesicle. I. HI. the three principal loops. (From Meisenheimer, after Maziarski.) 



hearing appears to be absent ; 

 or smell, enabling the animal 

 kinds of food, is well developed. 



but a faculty analogous to taste 

 to distinguish between different 

 The goblet-shaped bodies, groups of 



