12 PLATE XLI. 



it under the title of the Wheel Animalculum^ and hence it is well known. 

 It is found in gutters, or leaden pipes, in the fummer. This Infe£l 

 poffeffes one property by no means common to larger animals, or 

 even known of many of the minuter kinds; it lives in the water, but 

 may be kept dry for months ; and when again it is immerged in that 

 element, it will regain its life and motion in half an hour. 



F I G. III. 



T R l C H O D A L Y N C E U S. 



GENERIC CHARACTER. 

 An invifible, pellucid, hairy "Worm. 



SPECIFIC CHARACTER. 



Nearly fquare ; with a crooked beak. The mouth hairy. 



F I G. IV. 



K E R O N A PATELLA. 



GENERIC CHARACTER. 



An invifible Worm with horns. 



With one valve, orbicular, chryftalline; the fore-part notched; the 



body lies in the middle of the fhell : above and below are hairs or 



horns, of different lengths, jutting out beyond the fliell, and ading 



inilead of feet and oars. 



Muller's Jni. Infuf, 



PLATE 



