266 ZOOLOGY. 



ORDER IV. 



ZooFRYT A.— ZOOPHYTES. 



This like the preceding order, has its characters taken 

 from the tenements or habitations, and not from the Animal 

 inhabitants. The order is divided into Zoophytes^ which 

 are soft and naked, and Lyihophyfes, which are covered 

 ■with a hard coat. 



Animals compound ; ejflorescmg like vegetables. 



1. Tubipora. Tubipore. Animal a Nereis', coral com- 



posed of erect, hollow, cylindrical, parallel tubes. 



2. Medrepora. Madrepore. Inhabitant a Medusa ; coral 



■with star-shaped cavities. There are five families of 

 this genus, * stars single ; ** with numerous separate 

 stars, and continued gills ; *** with numerous united 

 stars ; **** aggregate, undivided, with distinct stars, 

 and porous, tuberculated, prominent undulations ; 

 ***** branched with distinct stars, and tuberculated 



porous undulations. 



3. Millepora. Millepore. Animal a Polype or Hydra'; 



coral mostly branched, and covered with cylindrical 

 pores. 



4. Cellepora. Cellepore. Animal a Polype or Hydra / 



coral somewhat membranaceous, composed of round 



C9lls. 



