446 Frogs of the Okefinokee Swamp 



than those in the field, being 1.3-1.4 mm. and the inner envelope absent. The 

 jelly did not swell out quite as well as in the field. Our identification of the 

 egg masses of July 22 is certainly correct." 



From subsequent studies of the eggs we found the jelly envelope to be 

 3.8-6.9 mm., the mode 5 mm. the average, 5.4 mm.; the vitellus to be 1.5-1.8 

 mm., mode 1.6 mm., average 1.6 mm. Egg complement 200-600. 



Dangers. On July 22, 1922, when most of the masses were fresh we found 

 one mass about at the hatching stage. It must have been laid in the generally 

 rainy (July 18-21) period for southern Georgia. Doubtless it was laid near the 

 edge of the high water mark. By July 22 receding began. The mass was in 

 water only 3 inches deep and one half of the eggs were white and spoiled. 

 This is the only mass we found caught in this fashion. 



HATCHING PERIOD 



On July 22, 1922, the masses were all fresh except one. This was laid in 

 the rainy period from July 18- July 21. In the period from July 18-22 the 

 air minima were from 65-73°, maxima 84-96°. The water doubtless in this 

 shallow area kept about 70° or higher. These eggs were probably about 4-5 

 days in hatching. The egg masses of July 22 in the laboratory hatched in 

 about three days. 



MATURE TADPOLE 



Color description from life (May 23, 192 Jj). One tadpole very large, 

 brownish olive mummy brown or brownish olive. In general dorsum very 

 dark. A few large widely scattered black spots on the dorsum. The brownish 

 olive on rear sides surrounds lemon yellow or greenish yellow spots. This 

 yellowish color on either side of belly with a few small dark flecks. Middle of 

 belly pale grayish vinaceous or vinaceous buff. Ventral pectoral and branchial 

 region grayish violaceous blue or body color with vinaceous buff and greenish 

 yellow spots. 



Tail. In general a grayish color. Along the middle of the upper crest is 

 row of large spots or these connected. This a much broader and more con- 

 spicuous row than R. grylio, being about 2 inches long. In middle of muscula- 

 ture is a dark fine or area to tip of tail parallehng the upper tail crest line of 

 black. The upper tail crest is irregularly black-margined to tail tip. This 

 black more or less outlines pale chalcedony yellow spots. The musculature 

 has numerous pale grayish vinaceous-vinaceous buff spots. Lower tail crest, 

 narrow with irregular black margin in tip region for i-i| inches. This crest 

 with numerous pale chalcedony yellow or vinaceous buff spots. Iris largely 

 black with ochraceous salmon or greenish yellow flecks. 



One tadpole near transformation buffy citrine, olive lake, or dull citrine a 

 very few inconspicuous spots on dorsum. Tail crests with no black muscula- 

 ture with the vinaceous buff spots. Legs olive lake in color. Iris pinkish 

 vinaceous and black. Belly pale chalcedony yellow, or sulphur yellow. 



Mouth parts. Teeth 2/3 or 1/3. 



