NOTEUS. 173 



than two parts, though the two at the sides seem 

 more particularly used as active organs. One 

 genus, Anurcea, has no tail or foot, the others 

 have a powerful instrument of this kind ; three 

 of the genera carry their eggs attached to the 

 outside of the body, giving them a very curious 

 appearance, but seeming not to impede their 

 progress through the water. 



Noteus qiiadricornis (Drop IV. fig. 1 3) is a very 

 fine and interesting animalcule, of considerable 

 size, and, being broad and flat, soon attracts the 

 eye. The lorica is nearly round, much flattened, 

 rough, and on one side seems divided into com- 

 partments ; it has also two spines near the tail, 

 and four at the head ; the whole very transparent, 



allowing the body to be seen within. There 



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