Microscopical Essays. 



150. Leucophra Burfata. 



Leucoplira viridis, ovalis, antice truncata. Green oval leu- 

 cophra, the fore-part truncated. 



This is fimilar in many refpe&s to the foregoing leuco- 

 phra, it is a long oval, bulging in the middle, filled with green 

 molecules, every where ciliated, except at the apex, which is 

 truncated, and fomewhat of the fhape of a purfe ; the hairs larger, 

 and fometimes collected in little fafcicles. It is to be found in fait 

 water. 



151. Leucophra Pofthuma. 



Leucophra globularis, opaca, reticulo pellucenti. Globular 

 opake leucophra, covered as it were with a pellucid net. 



Was found in fcetid fait water. 



152. Leucophra Aurea. 



Leucophra ovalis, fulva, utraque extremitate aeq-uali obtufus. 

 Oval yellow leucophra, both ends of it equally obtufe. 



The little hairs are with difficulty difcovered ; it has, in general, 

 ■a vehement rotatory motion. 



153. Leu„ 



