90 



ALPHABETICAL IN I )EX. 



Thecopsammia soeialis . 

 Thecopsammia tintiunabuluui 

 Trochocyatlms 

 Troehoevathus coronatus . 

 TrochosmHiaceat . 



43 

 43 

 14 

 14 

 18 



Troehosmilirise . 

 Tubastreea annularis 

 Tubastrma cam i nosa 



Turbinolida; . 



