FROGS or SOUTHEASTERN BRAZIL — COCHRAN 353 



which is usually granular in other species. Vocal sac apparently ex- 

 ternal, extending entirely across the throat. 



Dimensions. — Head and body 21.5 mm.; head length 6 mm., width 

 6.5 mm. ; femur 9.5 mm. ; tibia 10.5 mm. ; foot 10.5 mm. ; hand 5.5 mm. 



Color in alcohol. — Ground color of dorsal surface drab, becoming paler 

 on the limbs; an indistinct interorbital crossband, bordered behind by 

 a darker drab patch that fades out posteriorly; a large chocolate 

 postanal patch, and a series of similar dark spots along the lower pos- 

 terior side of the femur; upper part of femur with a brown diagonal 

 crossbar, and a few parallel brown dots on each side; knee brown, a few 

 brown spots along outer tibia, and some faint brown crossbars above; 

 foot also barred and spotted with brown, lower surface of tarsus nearly 

 entirely brown; forearm faintly crossbarred, a wide brown stripe along 

 its lower surface; a faint brown line extending backward from the 

 eye, widening on the sides as it follows the diagonal glandular line; 

 venter olive brown anteriorly, lightening posteriorly and with some 

 large black spots scattered over the abdomen; throat dull olive. 

 Inguinal gland covered posteriorly by a round sepia spot; its ante- 

 rior part probably red or yellow in life. 



Color in life. — The coloration of specimens collected on Tijuca is as 

 follows: Body russet, very beautifully marked with sepia patterns 

 edged narrowly with pale cream color. Legs wood brown, with similar 

 markings. A dark, clove-brown, lateral stripe from eye onto side 

 of body. A cadmium-orange inguinal spot extending onto the 

 anterior femur, and a similar but duller orange tone on upper lip and 

 side of head past the tympanum. Throat slate color, paler on chest, 

 abruptly changing to orange-buff on anterior part of belly; posterior 

 belly pearl gray. Lower limb surfaces olive-gray, with the glandules 

 tipped with orange. Metatarsal tubercles orange. Tips of toes pale 

 olive-bujfF. Pupil clay color with a gold ring around the iris, which is 

 transversely elliptic. At first glance this species suggests a Microhyla. 



A dissection of the fourth toe in USNM 70578 from Angra dos Reis 

 shows the terminal phalanx to be a thick cylinder proximally, then 

 tapering and again widening at the tip although no true T-shape is 

 attained. 



Variations. — Seven additional specimens from Alto da Serra do not 

 show much variation in essential features. The tympanum becomes 

 partly \^sible only in a dried specimen, and apparently did not show 

 at all in the living animal. The adpressed heel may reach to the center 

 of the eye, or nearly to the nostril. The spotting on the belly is 

 fairly fine and uniform, like that of the described specimen, in 96843 ; 

 it is very coarse and scattered and the spots do not have light centers 

 in 96841 and 96838, while the remaining four have only the belly 

 suffused with irregular small dark areas. 



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