U S . Exploring Exp edUiorz, . 
AirfyiPirc -At jaw- F©§ms plil. 
fpim*. 
fl7 Fulton* St- IS- IS 
Drawn- by J. D- Dana. 
Fig 1.1a , Urosthenes australis. 2.a,L,e,d , e,f, TereLr&tnla amygdala. 
glaber. rajb.S. Darwinn . 
3 a,l»,c',d,T.elongata . 
h 
Terebratula , 9 5 , e a , e , d , e , f , g , Spirxfer 
