I III. BROOKLYN MUSEUM 



home, together with crabs, lobsters, shrimps, barnacles, 

 horseshoe crabs and others. In the wall case at this point. 

 the giant spider crab and the locust lobster of Japan, the 

 largest species of living crustaceans, are shown. 



The systematic series of shells, which includes character- 

 istic examples of the principal divisions of mollusks and 

 gives a general impression and synopsis of this group of 

 animals, is arranged in two floor cases on the right (south- 

 ern) side of the hall at this (western) end. The largest 

 specimens are in the upper part of the case, and the exten- 

 sive study collections are arranged systematically in draw- 

 ers below. Fine specimens of the nautilus and argonaut, 

 representing the higher mollusks, may be seen, also the 

 paper nautilus of Japan; a particularly interesting specimen 

 is the naked mollusk from Naples, which appears to have 

 no shell because the shell is internal. 



An exhibit of land snails and of shells from Lake Tan- 

 ganyika occupies a position in the systematic series of shells 

 and shows specimens of the eggs of marine mollusks. 



The ship-boring bivalve teredo and its work in destroying 

 ship bottoms are exhibited in the case next on the east; 

 sections of wood show the damage done and method of 

 work, and photographs show the anatomy of the animal. 

 Other boring mollusks are exhibited here also, and in the 

 upper part of the case are habitat groups of the edible snails 

 of southern Europe. The common vineyard snail is exten- 

 sively used for food and snail farms are operated to produce 

 it in quantity. 



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