124 Trans. Acad. Sci. of St. Louis. 



and about intermediate between the choanae, their anterior edges being 

 in the same line. The teeth in the upper jaw extend back to the gape 

 of the mouth. The fore legs are well developed. All the fingers are 

 perfectly free. The third finger is the longest; the first and fourth 

 equal; the second the shortest. All are thickened at the base. Legs 

 long, the heel reaching to the muzzle or beyond. Tibia longer than 

 femur. One outer metatarsal tubercle and also a faint inner one pres- 

 ent. Subarticular tubercles on fingers and toes feebly developed. Web 

 leaving two phalanges of longest toe, and one of the others, free. The 

 skin of the back, the sides, and upper surfaces of the legs is provided 

 with numerous sharp points which produce a slight roughness to the 

 sight and touch. A dorso-lateral glandular fold starts at the corner of 

 the eye and continues along the side to near the vent over the tympanic 

 disk. This fold gives off a rather indistinct branch, which bends down 

 behind the disk and terminates over the arm. No other folds between 

 the dorso-laterals. Another glandular fold begins near the corner of the 

 mouth and stops just over the arm. The hinder surface of the thighs 

 somewhat granulated. 



Color. — In alcoholic specimens the color of the upper surfaces of body 

 and limbs varies from pale reddish-brown to ashy or dark gray; the 

 sides may be pale yellow or brown; beneath whitish. There may be a 

 few indistinct spots on the pelvic region of the back, while the sides 

 may be somewhat mottled with dusky. Limbs distinctly or indistinctly 

 barred with brovv^n. A dark stripe at the base of the humerus in front. 

 A black stripe from the snout to the eye. A triangular brown ear patch. 

 A white stripe from the snout and along the upper lip to the arm. 

 Upper and lower lips marbled with brown and whitish. In life the 

 colors undergo considerable change, according to the surroundings. 

 Farmers call this the "Red Frog." (Hay.) 



^ize. — Length of head and body 64 mm.; from tip of snout to axilla 

 24 mm.; femur 32 mm.; tibia 36 mm.; tarsus and fourth toe together 

 50 mm. 



Habitat. — This species occurs from Maine to the Atha- 

 basca Eiver and south to South Carolina and Missouri. 

 Cope in his Batrachians of North America reports one 

 specimen, No. 3,453, from St. Louis, sent by Dr. George 

 Engelmann to the Smithsonian Collection. So far I have 

 found this frog only near Marble Cave, Stone Co., Mo. 

 This frog is quite rare. 



Habits. — This frog is far less aquatic than most of the 

 others, preferring to spend its life among fallen leaves of 

 the forest. It repairs to the water only in the breeding 



