FROGS OF SOUTHEASTERN BRAZIL — COCHRAN 273 



upper lip dark, with a light bar in front of eye; venter pale, with some 

 dark marblings around edge of lower jaw. 



Color in life. — Based on live specimens taken at Tijuca on January 

 21, 1935. A large adult: Dorsum deep hair brown lightening to 

 wood brown on the sides; lateral glandular line russet; black patches 

 above ear and on groin; a buff -yellow vertical stripe in front of eye; 

 limbs above pale wood brown banded with drab; throat pale olive- 

 gray, chest and hind legs with pale malachite-green tinges below; 

 belly maize yellow; iris iridescent malachite green on upper half, 

 duller below, with gold aud black lines near the iris, which is hori- 

 zontally elliptic. A half -grown frog: Dorsum like the first but with 

 less hair brown; venter the same; ii'is somewhat less green, more 

 purplish before and behind. Nine young specimens had the body 

 clay-color, buff, or orange-ochraceous above, with a very prominent 

 postaxillary diagonal clove brovm stripe, and another smaller dark 

 stripe on postsacral region before the anus; markings on back mostly 

 raw umber to sepia; sides below olive-buff to deep chrome. 



The species is common in wooded mountains. Its call is a sort of 

 quacking, suggesting that of a duck. 



Remarks. — Although Boulenger considered Hylodes guentheri syn- 

 onymous with Hylodes gollmeri Peters from Caracas, Venezuela, 

 described the year before, the two species seem to differ in at least 

 one important structural character; gollmeri has the interorbital 

 space wider than the upper eyelid, while in guentheri from Rio de 

 Janeiro it is equal or narrower. Until the types of gollmeri can be 

 compared directly with specimens from Rio de Janeiro, it seems better 

 to keep the two apart. 



Nevertheless, the Brazilian form varies to a considerable extent, 

 as Steindachner himself has shown in his figures of the various color 

 patterns. Some specimens have a nearly immaculate brown back; 

 others have a W-shaped dark mark on a light ground, as in Stein- 

 dachner's figure of the type; and there are all grades of intervening 

 patterns. The skin may be quite smooth, tubercular, or beset with 

 short glandular ridges, which, however, do not form the parallel 

 arrangement characterizing hinotatus. 



Specimens from Nova Friburgo seem to have merited specific 

 designation because of the shape of the snout. While not all the 

 measurements of specimens from Nova Friburgo on which Dr. A. 

 Lutz based the name Hylodes nasutus indicate their separation from 

 typical guentheri of Rio de Janeiro, yet the shape of the snout, viewed 

 from above, is decidedly more pinched and attenuate, and the upper 

 lip flares out more broadly in the latter, makmg its contour some- 

 what different. 



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