1 | Blouin, M. S. 1990. Evolution of palatability differences between closely-related treefrogs. Journal of Herpetology 24:309–311. |
2 | Jameson, D. L., and R. C. Richmond. 1971. Parallelism and convergence in the evolution of size and shape in holarctic Hyla. Evolution 25:497–508. |
3 | Lee, D. S. 1968. Observations on hybrid Hyla gratiosa x cinerea in central Florida. Bulletin of the Maryland Herpetological Society 4:76–78. |
4 | Travis, J., W. H. Keen, and J. Juilianna. 1985. The effects of multiple factors on viability selection in Hyla gratiosa tadpoles. Evolution 39:1087–1099. |