go The Under -Water World 



which she rolls into a ball and carries 

 between her mouth parts until the 

 young hatch out a period of two to 

 three months. The larvae pass through 

 many grotesque stages and attain a larger 

 size than the parent form. Squillas are 

 regarded as a delicacy in many parts of 

 the world. In Italy, where they are 

 usually fried in oil, they are served in the 

 restaurants under the name of " scampi/' 

 Certain minute Crustacea, abundant in 

 fresh-water and brine pools, are of special 

 interest. They are built on a primitive 

 plan and approximate to what geologists 

 believe to be the ancestral form. Closely 

 allied is the transparent fresh-water 

 " flea " Daphnia, which is sometimes so 

 abundant as to tint pools and sluggish 

 streams a dull red. The carapace is in 

 the form of two flattened valves, and the 

 long antennae are employed in swimming 

 with a peculiar jerky motion. Daphnia 

 may be recommended for microscopic 



