SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. 144. NO. 3. PLATE 24 



1-4, RHYNCHOPYGUS MARMINI (AGASSIZ); 5-8, RHYNCHOPYGUS 



LAPISCANCRI (LESKE): 9, NUCLEOPYGUS SIMILIS (D'ORBIGNY); 



10, 11, NUCLEOPYGUS MINOR DESOR; 12, 13, NUCLEOPYGUS 



angustatus (Clark) 



(see explanation of plates at end of text.) 



