



Little Grass Frog - Pseudacris ocularis

- Diagnostic Features:
- Size: 0.5 to 0.75 inches (13 to 19 mm); tiniest North
American frog
- Color:
- Extremely variable; tan, brown, greenish,
pink, or reddish
- Other:
- Dark line passing through the eye and
onto side of body
- Usually a narrow, dark middorsal stripe starting as
a triangel between the eyes and extending to anal region
- Another dark, narrow stripe separates the middorsal
color from the lighter ground color of the sides
- Chest whitish or yellowish, plain
- Toes slightly webbed
- Sexual Dimorphism:
- Natural History:
- Habitat:
- An elfin Chorus Frog whose climbing is
restricted to low vegetation
- Moist, grassy environs of ponds and cypress bays
are favourite habitats
- Behavior:
- Breeding:
- January to September, often with summer
storms
- Females deposit eggs singly on the bottom of
shallow ponds or in vegetation; about 100 total
- Voice: Sonogram
: Call
( Effingham, & Jenkins Counties )
- A tinkling, insectlike call - set-see,
set-see - so high and shrill that some people have trouble hearing it
- Tadpoles:
- Tadpole stage: 45 - 70 days
- Transformed size: 7 - 9 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 25% of basal muscle height; pale silver to orange
stripe from eyes to tail base (usually disappears in preservative) may
extend onto dorsolateral part of tail muscle as pale stripe above dark
area; dark tail banded dorsally, at least in smaller specimens; fins
with abundant diffuse blotches; dorsum of large specimens with discrete
black dots; throat pigmented near oral disc; P-2/P-3 ca. 4.0; summer
breeder usually in temporary lentic sites with emergent vegetation in
southeastern Virginia to western part of Florida panhandle
-
- throat lightly pigmented near oral disc; P-2/P-3
> 3.5; length of one side of A-2/width of medial gap ca 5.0; to
30 TL; lower jaw sheath narrow; midventral marginal papillae biserial;
few submarginal papillae ventrolaterally; white, ventral portion of
tail coloration about 25% of basal muscle height; pale (silver to
orange) stripe from eyes to tail base (usually disappears in
preservative) may extend onto dorsolateral part of tail muscle as a
pale stripe above dark area; dark tail banded dorsally, at least in
smaller specimens; fins with abundant diffuse blotches; dorsum of large
specimens with discrete black dots; fins of larger specimens with
fairly uniform, diffuse pigmentation; summer breeder usually in
temporary lentic sites with emergent vegetation in southeastern
Virginia to western part of Florida panhandle
- Range:
- In North America it is found from southeast Virginia to
the southern tip of Florida; inland to edge of the Piedmont and the
extreme southeast Alabama
- In Georgia, it is found below the fall line, primarily
coastal.


- 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. Museum specimens
- In Pale
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. Literature only, no museum specimens.
- 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


May 25, 2008 - wwknapp@mindspring.com