STAUEOCALYPTUS. 



167 



altogether suppress the apprehension that further studies on more 

 material than is at present available may necessitate changes of 

 greater or less importance in the systematic arrangement of the 

 specimens now referred to those species. 



(For use in comparing the characters of closely similar 

 Staurocalyptus species, in which the dermalia are nearly exclusively 

 or at any rate predominantly pentactins, I append, as a foot-note,"''' 



mens), in which the dermalia are predominantly or nearly exclusively pentactins. 



