U. S. NATIONAL MUSEUM 



PROCEEDINGS. VOL. 85 PLATE 23 



SPECIES AND SUBSPECIES OF CHONDROTH YRETES (X2) 



1, parilis scalaris: 2, cerina polita; 3, p. parilis: 4, p. fossuiaris; 5, c. puella: 0, p. 6-(monw; 7, p. fmoena; 8, c. 

 subcerhia; 9. c. roseoapicata; 10, c. cerina. 



