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life, in its intermediate forms. 
phosis. They rather consist of a progressive increase of 
the number of limbs, and of segments. At birth, the 
Julus is destitute of limbs, -which do not appear till after 
the first moult. Three pairs are now developed, and with 
these the little creature must be content until the second 
moult, after which it possesses seven pairs. These are 
placed on the foremost segments, the posterior rings 
being, as yet, destitute of limbs. The third moult occurs 
when the animal is a month old ; it has now twenty-two 
segments, and twenty-sis: pairs of feet. Thirty-six pairs of 
feet signalise the fourth moult ; and after the fifth, there 
are forty-three pairs, and thirty segments. Finally, in 
the adult condition, thirty-nine segments are distinguished 
in the male, and sixty-four in the female* 
* Savi. 
