U. S. NATIONAL MUSEUM 



PROCEEDINGS. VOL. 79. ART. 2 PL. 2 



CoTotra. ^uhcyot/iescens 



Monocesta. Cory// 



SPECIES OF TRIRHABDA. DEROSPIDEA. CORAIA. AND MONOCESTA 

 FOR EXPLANATJON OF PLATE SEE PAGE 36. 



