SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. 148. NO. 2. PLATE 1! 



1-1C, COLEDIUM RHOMBOIDEUM, 2, COLEDIUM GLOBULINUM; 3, COLEDIUM PLEURODON; 



4, COLEDIUM NUCULUM; 5-5A, COLEDIUM OPIMUM; 6, COLEDIUM CRASSUM. 



(SEE EXPLANATION OF PLATE AT END OF TEXT.) 



