212 ANIMALS OF THE SEASHORE 



Orchestia platensis Kroyer (Beach Flea) 



(0. agilis Smith) 



PLATE XXIV. Fig. 4 



Small, % inch or less in length, light brown 

 in color; occurs in great numbers among moist sea- 

 weed washed on the beach near high water mark; 

 jumps out rapidly when disturbed. Found along 

 the whole coast. 



Orchestia grillus Bosc 

 (0. palustrus Smith) 



PLATE XXIV. Fig. 5 



Larger than the above (about 1 inch in length), 

 with longer first antennae; light brown in color, 

 Found among grass in salt marshes; does not hop 

 about as much as the above. Cape Cod to Texas. 



Talorchestia longicornis Say 



(Talitras longicornis Say) 



PLATE XXIV. Fig. 1 



Resembles Orchestia agilis, except for being 

 whitish in color; about 1 inch in length; long an- 

 tennae. Lives in small burrows near and above high 

 water mark, usually farther from the water than 

 the home of 0. agilis; hops about the sand particular- 

 ly at night. Cape Cod to New Jersey. 



