ARTEMIA. 265 



Gen. 139. ARTEMIA, Leach. 



Abdomen long, formed of six divisions, shortly bilobed, 

 and not divided into two caudal plates ; the lower antennae 

 of male flat, broad, and not furnished with any appendages. 



Artemia salina, Linn. sp. Brine Shrimp. (Plate XV. 

 fig. 3 a, larva.) — Body linear, nearly half an inch long. 



Hab. Saltpans at Lymington, Hants. 



From Dr. Baird's work we make the following extract 

 on the habits of the Artemia salina. " They are found ex- 

 clusively in salt-water, and though they do occur in salt- 

 marshes, still they are to be found in greatest abundance in 

 water that is very highly charged with salt. ' Myriads of 

 these animalcula/ says Mr. Rackett, 'are to be found in 

 the salterns at Lymington, in the open tanks or reservoirs 

 where the brine is deposited previous to the boiling. It 

 attains the desired strength by evaporation, from exposure 

 to the sun and air, in about a fortnight ; a pint contains 

 about a quarter of a pound of salt ; and this concentrated 

 solution instantly destroys most other marine animals/ In 

 these reservoirs there is always a certain quantity of this 

 strong brine allowed to remain, and there these little 

 creatures are found in greatest abundance and in greatest 



