## Brimley's Chorus Frog - Pseudacris brimleyi

- Diagnostic Features:
  - Size: 1 to 1.25 inches (25 to 32 mm)
  - Color:
    - Tan to Brownish Yellow
  - Other:
    - Bold black stripe down each side of the body, extending without interruption from snout to groin and passing through the eye
    - Middorsal stripes brown or gray and frequently faded
    - Undersurfaces yellow, chest usually spotted with brown
    - Markings on legs tend to be longitudinal instead of forming crossbands
    - No dark triangle between the eyes
  - Sexual Dimorphism:
- Natural History:
  - Habitat:
    - An early singer in the marshes, swamps, ditches, and wet open woods of the Coastal Plain
    - Low areas in hardwood forests and swamps near rivers and streams.
  - Behavior:
  - Breeding:
    - February - April, may breed from late fall on.
    - Prefers ditches or shallow ponds.
    - Females deposit small loose clusters of eggs on stems or other objects
- Voice: Sonogram : Call (Jasper County, South Carolina)
  - Short raspiing trill, lasting less than a second and repeated a dozen times or more
- Tadpoles:
  - Tadpole stage: 40 - 60 days
  - Transformed size: 9 - 11 mm
  - LTRF 2/3; narrow midventral gap in marginal papillae absent; eyes lateral; P-3 medium to short, P-2/P-3 > 1.2; east of Mississippi River
  - LTRF 2/3; narrow midventral gap in marginal papillae absent; eyes lateral; east of Mississippi River regardless of size, stage or range, notable colors or patterns in Section 10 absent; P-3 short, P-2/P-3 > 1.8; lateral surface of tail muscle distinctly bicolored
  - body darkly pigmented; white ventral portion of tail coloration about 50% of basal muscle height and demarcation between them is distinct; pale (silver to orange) line of iridophores from eye to tail junction (largely disappear in preservative) sometimes extends onto tail to form pale stripe above black portion; throat distinctly pigmented, usually in spots; P-2/P-3 ca. > 3.0; spring breeder in temporary or permanent forest swamp pools in central Coastal Plain of Virginia to northeastern Georgia coast
  - throat pigmented uniformly dark; P-2/P-3 > 3.0; length of one side of A-2/width of medial gap ca. 1.0; to 35 TL; lower jaw sheath narrow; midventral marginal papillae uniserial; submarginal papillae lacking; white ventral portion of tail coloration about 50% of basal muscle height; pale (silver to orange) line of iridophores from eye to tail junction (largely disappear in preservative) sometimes extend onto tail to form pale stripe above black portion; chin and throat distinctly pigmented, usually in spots; spring breeder in temporary or permanent forest swamp pools in central Coastal Plain of Virginia to northeastern Georgia
- Range:
  - In North America, it ranges from southeastern Virginia to eastern Georgia
  - In Georgia, it is found in the southeast part of the state.
  - In Light Blue: Williamson, Gerald K. & Moulis, Robert A., Distribution of Amphibians and Reptiles in Georgia, Special Publication No. 3, Savannah Science Museum, Inc. Savannah, Georgia, 1994
  - In Green: Sound Recordings
  - In Yellow: From Both '94 study and Sound Recordings
  - In Magenta: Photograph, not found by '94, may or may not be sound record
  - In Medium Blue: Photograph and in '94 study, may or may not be sound record
  - In Orange: County Record by other Herp Atlas Volunteers
  - In Red: US Distribution from various sources

June 28, 2003 - wwknapp@mindspring.com