THE BROOKLYN MUSEUM 



water polyp hydra and other related forms. In the adjacent 

 wall cases, specimens of mushroom, staghorn and brain 

 coral and other forms are shown. A very large specimen of 

 brain coral from the Bahamas and a specimen cf staghorn 

 coral, one of the largest pieces of branching coral ever col- 

 lected, are exhibited in floor cases in the center of the hall. 



Among the mural paintings in this hall, representing 

 some of the more striking invertebrates as they appear in 

 life, is one depicting a coral reef in a tropical sea, and on 

 the south wall in the center of the hall a large window 

 group shows a coral reef close at hand and the animals that 

 frequent it. Other mural paintings show an octopus at 

 home, the formation of a mangrove swamp and other typi- 

 cal shore scenes of the Atlantic coast. Proceeding down 

 the left side of the hall, the starfish and sea urchin families 

 occupy the next case, and the development and anatomy of 

 starfishes and sea urchins are illustrated by drawings, dis- 

 sections, models and specimens of various ages. Abnormal 

 specimens and specimens showing regeneration of rays in a 

 starfish also are shown. The various types of sea urchins 

 occupy the eastern side of the case. The worms in the next 

 cases include the serpulid worm of the sea, the horsehair 

 worm and a model enlarged and dissected ; the branchiopods, 

 related to both worms and mollusks, are shown here. 



Crustaceans, in the next case, are represented by some 

 one hundred species, including the crayfish with an en- 

 larged model of dissection to show the anatomy, and a sec- 

 tion of mud from a river bank showing a crayfish group at 



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