Microscopical Essays, 



577 



294. Trichoda Verfatilis. 



Trichoda oblonga, poftice acuminata, collo retraclili, infra 

 apicem crinito. Oblong trichoda, the hind-part acute, with a 

 neck that it can extend or contract at pleasure, the under part of 

 the extremity of the neck hairy. 



It refembles in fome meafure the trichoda proteus, but the 

 neck is fhorter, and the apex lefs fpherical, the hinder-part of 

 the trunk acute. It lives in the fea. 



195. Trichoda Gibba. Fig. 55. 



Trichoda oblonga, dorfo gibbera, ventre excavata, antice 

 ciliata, extremitatibus obtufis. Oblong trichoda, with a bunch 

 on the back, the belly hollowed out, the fore-part ciliated, both 

 ends obtufe. 



The body is pellucid, the upper-part fwelled out, within it are 

 numerous obfcure molecules, and three large globules, the ends 

 rather incline downwards; when the water begins to fail, a few 

 minute hairs may be difcovered about the head, and at the abdo- 

 men ; the body then becomes ftriated longitudinally. 



196. Trichoda Foeta. 



Trichoda oblonga, dorfo protuberante, antice ciliata, extremi- 

 tatibus obtufis. Oblong trichoda, with the back protuberant, 

 the fore-part ciliated, both ends obtufe. 



4 A The 



