15 



deepest waters ; numbers will be found on rocky 

 and sandy shores, towards evening, in search 

 of food, or left in pools by the retiring tide; 

 many also may be discovered under stones, frag- 

 ments of rocks, and in holes, or buried in the 

 sand. Every opportunity should be taken to 

 visit the sea-shore after storms and heavy gales 

 of wind, and the sea-weed and other rejecta- 

 menta should be carefully examined, as well as 

 the nets of fishermen. The empty shells found 

 on the sea-shore, are frequently the habitation 

 of the animals of which we are in search. The 

 fresh water species are numerous, and will be 

 found in rivers and running streams : some few 

 are parasitic, being found attached to fishes ; 

 many perforate buildings of wood, piles, &c. 

 The few terrestrial species yet known may be 

 found in rotten wood, under moss and stones; 

 and these, though they may be considered com- 

 mon by the indifferent observer, may yet be 

 unknown to the naturalist. Under these cir- 

 cumstances, it is to be hoped, that persons who 

 may have the opportunity, will avail themselves 

 of our hints ; for although many of the animals 

 of this and of the next class may be found in 

 great numbers, yet it frequently occurs that they 

 are completely local, and may never be met with 



