ANIMAL LIFE IN PONDS & STREAMS 



of feelers project beyond the shell in front. Of his 

 two pairs of legs the foremost, or at least their tips, 

 hang down below the shell, but the last pair, as 

 we can see through the shell, are turned upwards. 

 At the hinder end of the body, there are two long 

 bristles, they may best be seen when Cypris is 

 swimming. Of what use exactly these bristles may 

 be to their owner is not definitely known, but it 

 is thought that they are of service in keeping his 

 shell clean. 



Another active little animal, quite as common as 

 the water fiea, is sure to attract our attention. It 

 is no larger than the water flea but much more 

 elongated; some specimens are bigger than others, 

 and the bigger ones are the females. Its name is 

 Cyclops and, though so common, it has no popular 

 name. 



Cyclops is so named on account of the fact that 

 it possesses but a single eye; it is, however, rather 

 an interesting creature in other respects, so we will 

 study it more closely. Looking down upon the 

 creature, we see that the front part of its body is 

 composed of an undivided shield, behind which there 

 are four plates and behind these again there are in 

 the male five and in the female four segments or 

 rings, at the extreme tip there is a forked tail, each 

 fork being furnished with a number of bristles. On 

 the head are two pairs of organs, one pair long the 

 other pair short and, if we observe Cyclops in the 

 act of swimming, we shall see that the long pair 

 of organs play the chief part. In the centre of the 



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