68 



PROCEEDINGS OF THE NATIONAL MUSEUM 



VOL. 74 



EXPLANATION OF PLATES 



Figure 4 of Plate 5, figures 2, 9, 10, 11, and 18 of Plate 6, and figure 8 of 

 Plate 7 are added for comparison and are not referred to in the text. 



Plate 1. Miscellaneous 



Fig. 1. Gastrophryne texensis. 



2. Scaphiopus couchii. 



3. Scaphiopus hammondii. 



4. Scaphiopus holbrookii. 



5. Gastrophryne carolinensis. 



6. Ascaphus truei (after Gaige). 



7. Bufo americanus. 



8. Bufo (Raleigh, N. C). 



9. Bufo terrestris. 



10. Acris gryllus. 



11. Pseudacris (Buffalo, Rochester, N. Y.). 



12. Pseudacris (Raleigh, N. C). 



13. Pseudacris ocularis. 



Plate 2. Rana 



Fig. 1. Rana catesheiana. 



2. Rana sphenocephala. 



3. Rana palustris. 



4. Ra7ia aesopus. 



5. Rana pipiens. 



Plate 3. Rana 



Fig. 1. Rana heckscheri. 



2. Rana heckscheri (young tadpole). 



3. Rana septenirionalis. 



4. Rana boylii sierrae. 



5. Rana sylvatica. 



6. Rana clamitans. 



7. Rana grylio. 



Plate 4. Hyla 



Fig. 



Fig. 



Supplementary 



