MICROSCOPIC OBJECTS. 



The colours of the coat of these insects vary in different indivi- 

 duals, as well as the colours of their ovaries, some being of a 

 greenish-blue, and others red with green ovaries. 



Another variety of this, called by Miiller the cyclops minutus, 

 or little cyclops, and popularly the jumper, is shown in B, fig. 5, 

 as drawn by Dr. Goring, the animalcule being in a bent position, 

 one of its characteristic attitudes. The real length of this 

 specimen was about the 250th of an inch. 



The structure of the coat, or cuirass, is similar to that of the 

 animalcule represented in A, fig. 2, but it has a greater number of 

 segments and a more graceful outline. The single eye is encrusted 

 in the shell. The antenna) have not as many articulations as 

 those of fig. 2, and the inferior pair of palpi is more plumed at 

 the extremities. The most remarkable distinction between the 

 two species is, that the latter is much smaller and supplied with 

 only a single gill or respiratory organ under its beak. It has ten 

 feet, and the female carries only a single bunch of eggs under the 

 abdomen. In some individuals the respiratory organ observed by 

 Mr. Pritchard has the form represented in B, fig. 6. 



9G 



