FROGS OF SOUTHEASTERN BRAZIL — COCHRAN 327 



the loreal region slightly concave and forming a very obtuse angle with 

 the flaring upper lip. Eye large, prominent, its diameter equal to 

 its distance from end of snout; interorbital diameter a little greater 

 than width of upper eyelid, equal to distance between nostrils. Tym- 

 panum large, distinct, two-thirds the eye diameter, separated from 

 eye by one-third its own diameter. Fingers free, with distinct lateral 

 ridges, first and second subequal, a trifle longer than fourth, reaching 

 halfway on penultimate phalanx of third; 8 crescentic pad at base of 

 thumb representing remnant of pollex; a small bifurcate palmar 

 tubercle; subarticular tubercles well developed. Toes webbed at the 

 base, with wide lateral fringes; third longer than fifth, reaching 

 nearly to base of penultimate phalanx of fourth ; a small conical inner 

 and a minute indistinct outer metatarsal tubercle; a very heavy fold 

 along inside of tarsus extending nearly to heel and continuous with 

 the lateral fringe on outside of first toe. Body fairly stout, in post- 

 axillary region a little narrower than width of head; when hind leg is 

 adpressed, heel reaches to center of eye; when limbs are laid along 

 the body, knee and elbow touch; when hind legs are laid at right 

 angles to body, heels just meet. Skin above minutely pustular, with 

 heavier glands on sacrum and on the sides; a short, weak supra- 

 tympanic ridge; venter smooth except for some elongate glandules 

 on posterior femur; no apparent ventral disks or mouth glands. 

 Some folds at the corner of the mouth, indicating lateral vocal sacs, 

 and two sharp conical spines on the outside of the thumb. 



Dimensions. — Head and body 34 mm.; head length 12 mm., width 

 12 mm.; femiu* 14 mm.; tibia 15 mm.; foot 17.5 mm.; hand 8 mm. 



Color in alcohol. — Dorsum dark sepia; a black interorbital bar, the 

 area in front of it light brown; dark crossbands on upper surfaces of 

 legs; posterior femur light drab with many small dark spots tending 

 to form borders to a central light area ; venter olive drab, with darker 

 mottUngs especially prominent posteriorly; edge of upper Up light 

 brown; a wide brown stripe from loreal region through tympanum, 

 along the sides to groin, ending halfway down anterior surface of femur; 

 soles of feet and tarsus dark brown. 



Remarks. — I collected an example of this species in a pit beneath the 

 railroad tracks in the town of Pirapora, Minas Gerais, and subse- 

 quently received tlu-ee additional specimens from the same town. 

 Two males in this lot show the two black spurs on each thumb. In 

 structural details all of them closely resemble Central American 

 examples of L. melanonotus (Hallo well), especially in the shape of the 

 head and in the character of the skin, which in breeding males is beset 

 with very small spiny tubercles, but is otherwise nearly smooth. 

 The hind leg of melanonotus appears to be shorter. All the three 

 adults from Pirapora have the second finger as long as the first, 



