The Frog Book (1906) Color plate 09

Description:

Description: English: Hyla regilla Bd. and Gird. Carmel, Cal. Figs. 1, 3 and 5 are photographs of the same male frog (all three photographs taken within ten minutes). Figs. 2, 4 and 6 are a similar series of a female. Hyla regilla may change rapidly from a dark unspotted to a light unspotted condition, or the reverse order, through a vividly spotted phase of coloration. Date: 1906. Source: Dickerson, Mary C. (1906) The Frog Book, New York: Doubleday, Page & Company. Author: Mary Cynthia Dickerson (1866–1923).