YOUNG OF THE LOBSTER. 259 



Crustacea are together the interest is much increased. 

 The development of the young of the lobster, from 

 the numerous eggs which the female usually carries 

 under her body in dense masses, has recently obtained 

 a good deal of attention. It is most interesting as 

 indicating the nauplius stage, which characterises the 

 early embryos of nearly all crustaceans alike, no 

 matter what their adult differentiations may be. 

 The young of the lobster pass through several stages 



Fig. 190. 



Larval or mysis stage of the common Lobster. 



before they reach the adult condition. The first is 

 visible before the egg is hatched. In this condition 

 the carapace (b) is indicated by the presence of spots 

 of red pigment, the rudiments of the eye (r), antennae 



S 2 



