124 UTILIZATION OF MINUTE LIFE. 



Shrimps resemble lobsters and crawfish to a 

 certain extent ; they have been subdivided by 

 naturalists into many distinct groups. 



The Crangon vulgaris is our common shrimp, 

 which, according to Pennant, is the most delicious 

 of all Crustaceans. 



In the Arctic Seas we have two other descrip- 

 tions of shrimps, namely, C. boreas and Sabinia 

 septemcarinata, which are sometimes plentiful on 

 the west coast of Davis's Straits. 



Other species of shrimps are found on the coasts 

 of Mexico, in the Mediterranean, the Indian Ocean, 

 etc., so that this tribe of Crustacea is pretty widely 

 diffused. 



Besides shrimps, we have also numerous species 

 of prawns, shrimp -like Crustaceans belonging to the 

 genus P alemon, well-known to the epicure. Some 

 varieties found in hot climates attain one foot in 

 length : such are Palemon carcinus of the Indian 

 Seas and the Ganges, and P. jamaicensis of the 

 Antilles. 



Prawns generally inhabit sandy bottoms near 

 the coasts, but are often found at the mouths of 

 rivers, even far up the stream, at some distance 

 from the sea. 



The common prawn of our markets is P. serratus. 

 It is taken on the English, Flemish, and French 

 coasts, where it is accompanied by two other species, 



