EXPLANATION OF PLATE LXV1. 



SCHL(ENBACHIA ROSTRATUS, J. Sby. 



Fig. 1. Cast of portion of a whorl with tubercles in two lines, one row 

 abdominal, the other supra-umbilical — slightly reduced. 

 ,, '2. Portion of a whorl partly testif erous with spiral lyrai crossing the 

 costse — § nat. 



