164 



THE LIFE OF CRUSTACEA 



case, and there are some species of Conchostraca 

 of which the males have never been seen. 



The genus Artemia (Fig. 55), among the Anostrac 

 is peculiar in its habitat ; for, while most of the 



A. 



FIG. 55 THE BRINE SHRIMP (Artemia salina). (After Sars.) 



A, Female, under-side, x 6 ; B, head of male, upper side, further 

 enlarged, showing the large clasping antennae. The larval 

 stages of this species are shown in Fig. 33, p. 81 



Branchiopoda inhabit fresh or brackish water, it 

 flourishes in concentrated brine. In the South of 

 Europe it is found, as it was formerly in England, 

 in the shallow ponds in which sea-water is exposed 



