ENTOMOSTRAC A . 201 



eyes afterwards appear, to which the muscular and nervous 

 organization is gradually transferred, leaving the original 

 single eye a mere disconnected spot ! 



Artemia salina. 



It resembles Chirocephalus, but is confined to salt-water, 

 and, as it seems, the salter the better ; for it abounds " in 

 the Salterns at Lymington, in the open tanks or reservoirs 

 where brine is deposited previous to boiling,^^ attaining by 

 evaporation a strength of saltness that destroys other ani- 

 mals. By the rapid motion of their feet they assist so ma- 

 terially in clearing the brine that the workmen take care to 

 stock with them those tanks where they do not so much 

 abound. " They are manifestly omnivorous, swallowing 

 everything that comes in their way. Like the Chiroce- 

 phalus, the undulatory motion of their branchial feet causes 

 a current of water to flow in the kind of canal formed 

 between them, which carries everything within reach to 

 their mouth. In this way we see them devouring their 

 own young.^' " If we observe,'' says M. Jol}^, " in a small 

 quantity of liquid, the mother at the time of parturition, we 

 see the young group themselves round her body, and there 

 is nothing more pretty, graceful, and agile, than this little 



