90 ALPHABETICAL INDEX. 



Thecopsaiiimi.a socialis .... 43 Troi'liosmilida- . . . . . .18 



Thecopsammia tintiiinabuhim . . .43 I'ulKu^tra'a annularis .... 77 



Trochocyathus 14 Tuhastrcca ciivcrnusd . . . . 7(j 



Troohocviithus coroiiatus . . . .14 Turbinolida; ...... 7 



TfiJc/idtnniUacacc ..... 1& 



