388 PROCEEDINGS OF THE NATIONAL MUSEUM. vnr. 53. 



EXPLANATION OF PLATES. 



Plate 50. 



Figs. 1-3. Diplodonfelipponei MarshaU. Natural size. 



Plate 51. 



Fia. 1. Diplodonfelipponei Marshall. Natural size. 

 2. Diplodon suppositus Simpson. Beak X 3. 

 3-6. Diplodon mimus Simpson. Natural size. 



Plate 52. 



Figs. 1-4. Diplodon fortis Marshall. Natural size. 



5. Diplodon perplexus Simpson. Beak X 3. 



6. Diplodon santa Tnariae Simpson. Beak X 3. 



Plate 53. 



Figs. 1-4. Diplodon perplexus Simpson. Natural size. 



Plate 54. 



Figs. 1-4. Diplodon suppositus Simpson. Natural size. 

 5-8. Diplodon trivialis Simpson. Natural size. 



Plate 55. 



Figs. 1-4. Diplodon santa mariae Simpson. Natural size. 

 & 8. Diplodon semigranosus Simpson. Natural size. 



