FROGS OF SOUTHEASTERN BRAZIL — COCHRAN 303 



Color in alcohol. — Dorsal tone raw umber; a seal-brown stripe from 

 eye to center of side bordering the glandular dorsolateral stripe below; 

 a dark diagonal stripe in front of eye to border of upper lip, a pair of 

 short dark stripes on the tip of the snout, and a few smaU dark spots 

 along the edge of the upper lip; some small dark dots on the middorsal 

 line just above the shoulder; no crossbars on upper surfaces of limbs, 

 but a wide brown stripe on anterior sm'face of femur and several very 

 dark brown spots on outer side of tibia; lower surfaces of femur and 

 tibia dark broAvn with small light spots; center of belly pale drab, 

 immaculate, its edges coarsely spotted; throat brown with minute 

 light dots; hands and feet pale drab, lightening on toes and fingers. 



Variations. — One other example from the same locality, USNM 

 96760, is very close to the described specimen except that its snout 

 is less broadened when viewed from above. No trace of a tympanum 

 can be made out in this ixidividual. Its coloration is almost identical 

 with that of the described specimen, except that the dark spots between 

 the shoulders are scarcely apparent. The coarse pattern of large 

 light spots on a dark ground is very evident on the sides and beneath 

 the femur and tibia of both specimens, while the throat and chin are 

 dark with very small white spots. 



Remarks. — This species is quite suggestive of Leptodactylus marmo- 

 ratus in regard to the general shape of head, position of vomerine 

 teeth, and presence of a single median toothlike process in the lower 

 jaw. The eyes are much less prominent than in marmoratus , however, 

 and the nostrils are more superior. The femur is extremely short in 

 L. gaigeae, causing the adpressed heel to reach only to the front of the 

 shoulder, instead of to the eye, as in marmoratus. The latter has 

 only a few dorsolateral glandules, faint when compared to the heavy 

 gland of gaigeae, and the fingers are relatively longer, especially the 

 first and second, which in gaigeae are weak in comparison. The 

 pattern is as distinctive as the details of structure: The dorsum is almost 

 immaculate in gaigeae, often heavily spotted in marmoratus; the brown 

 stripe bordering the lateral gland below in gaigeae is much lower on the 

 sides and much more clear-cut in outline than the rather irregular 

 dark stripe which usually emphasizes the dorsolateral region in marmo- 

 ratus; the dark white-spotted ground on the sides and lower surface 

 of legs in gaigeae is only slightly suggested in marmoratus by irregular 

 light spots on a clouded dark backgroimd incompletely covering the 

 lateroventral region and the legs, while the throat region of the latter 

 is pale with only a slight suffusion of gray dots on the sides towards 

 the corner of the mouth. 



This species also strongly suggests a Zachaenus panmlus at first 

 glance. The sloping snout, the very short second finger, the short 

 legs, the small eyes, and stout body are common to both. Direct 



