FROGS OF SOUTHEASTERN BRAZIL — COCHRAN 179 



ing along upper part of femur, crossed by pale sepia bars, its posterior 

 edge demarked with a dark line, partly broken up, which leads into 

 the most dorsal part of the ]>-shaped dark mark; tibia, foot, and fore- 

 arm with wide sepia crossbands narrowly outlined with dark; two or 

 three clove-brown spots on posterior surface of upper arm; elbow and 

 heel with darker sepia patches; ventral surface immaculate cream-buff, 

 except for sepia suffusions on hands and feet. 



Variations. — None of the Santa Catarina specimens has so narrow a 

 head in proportion to the postaxillary width as does the female type 

 specimen. Some of them have small tubercles on the posterior part 

 of the back in addition to those on the head. Some have a much 

 darker and more prominent color pattern than that described for the 

 type; in these the dark dorsolateral blotches are continued, narrowing 

 on the sides and widening at the lateroventral margin, and are set off 

 by the light (red in life) areas between them; these examples show a 

 suffusion of dark brown on the loose skin at the sides of the throat and 

 a few dark spots on the belly. The demarcation of dark and light is 

 very sharp on the outer and inner limb surfaces and the appearance of 

 the living frog must have been very striking as to color pattern. 



The postfemoral pattern of the two larger frogs from Bonito is prac- 

 tically identical with that of the type; the young ones, in poor condi- 

 tion, fail to show the dark longitudinal stripe that separates the im- 

 maculate postfemoral tone from the upper femoral pattern. Instead, 

 a narrow, usually spotted area like the sldn of the body appears along 

 the femur. The dark axillary spot, very prominent in the three larger 

 frogs, is found in only two of the younger ones. In the two best pre- 

 served specimens, the tarsal ridge and heel tubercles are quite appar- 

 ent, as are the tubercles on the back. All these specimens have a con- 

 spicuous white area below the eye on the upper lip extending below 

 the tympanum almost to the shoulder. A few very minute dark dots 

 occur on the edge of the upper lip, but this area is definitely less mottled 

 than it is in the examples of senicula. 



Structural features do not vary much in the specimens at hand. In 

 one specimen, the knee and elbow meet when limbs are laid along the 

 sides. The heel of the adpressed hind leg may reach to the posterior 

 or to the anterior corner of the eye. Only the best preserved show the 

 pustular tarsal ridge. 



Remarks. — This species appears to differ from its close allies, the 

 forms of H. marmorata, in the very distinctive color pattern, which 

 inevitably displays the light area below the eye, and the immaculate 

 postfemoral area set oft" by the peculiar >- or D -shaped dark blotches 

 on each side of the postanal region. The heavy, dark dorsal pattern 

 and the prominent dark spots in the inguinal region, as well as the 



