C 33 ] 



PLATE XIV. 



TRICHODA POCILLUMo 



Trichoda. 

 An invifible, pellucid, hairy worm. 



SPECIFIC CHARACTER, 



Oblong trichoda, the fore-part truncated and hairy, the tail articu- 

 lated, and divided into tv/o briftles. 



This inyifible animalculum is common in marfhy places, particu- 

 larly in the fwamps near the banks of the river Thames. 



When magnified, the body is pellucid, and appears as two feparate 

 bodies, one enclofmg the other; the interior part is filled with m.ole- 

 cules, and the exterior is membranaceous : they are capable of exten- 

 fion or dilation, and of folding in various directions. At the extre- 

 mity of the interior part is a mufcular orbicular membrane, which is 

 opened or fliut at pleafure, and forms the mouth. 



Fig. I. The interior part protruded with the mouth open. 

 Fig. 2. The jaws (hut. 



Fa PLATE 



