170 XJ. S. NATIONAL MUSEUM BULLETIN 206 



were probably lemon yellow in life, as are those occurring on the 

 species Hyla albomarginata. 



Remarks. — H. albosignata, a mountain species, has always been 

 found at altitudes of 800 meters and over. 



From notes by Dr. B. Lutz, Nova Friburgo, December 11-17, 

 1935: "At night, by the waterfall of a brook in a wooded area, one 

 Hyla albosignata was caught after a very long wait, in a place pre- 

 pared by Joaquim [Venancio] who had cut the excess vegetation in the 

 daytime. It was in the earth under roots of grass, and gave a varied 

 call, at a distance sounding one note, and nearby a kind of whining 

 croak that prepared us for a Paludicola. We were greatly surprised 

 when we extracted this green male, very much swollen, with a hugely 

 distended median vocal sac. It alternately dilated and contracted 

 the body slightly. The sides of the body were very greatly extended 

 by two enormous masses — lungs perhaps. The frog was in a state of 

 greatest excitement and continued so." 



Specimens examined 

 BRAZIL: 

 Rio de Janeiro: Bonito, Serra da Bocaina, USNM 96644, A. Lutz, Dec. 15-31, 



1931. 

 Sao Paulo: Alto da Serra, USNM 96781-2 (paratypes of H. albosignata), A. 

 Lutz, Jan. 25, 1924; IOC (paratype); MP 248. 



Hyla musica B. Lutz 



Plate 16, Figures a-c 



1949. Hyla musica B. Lutz, 1949b, pp. 565, 576, fig. 4 (type locality, Campos 

 das Antas, the Organ Mountains National Park, Teres6polis, Rio de 

 Janeiro, altitude 1,200 m.). 



Description. — As I have examined no examples of this species, the 

 original description is given here: 



Differential diagnosis: A green tree-frog closely akin to H. albofrenata and 

 especially to H. albosignata, which are also from the rain and mist forest of the 

 Brazilian Maritime Range. In life it can be distinguished by the presence of 

 nuptial excrescences outside the first finger of the breeding male, the delicate 

 skin and the slimy secretion which irritates the conjunctiva without coming in 

 contact with it. It can be separated from H. albofrenata by the larger size, the 

 ventral outline of the head, the light iris, the absence of the frenal line and of the 

 pointel heel tubercle and by the presence of heavy, wide glandular ridges on the 

 forearm and tarsus. Though nearer to H. albosignata, it is less heavy in build, 

 has a shorter and wider snout and lacks the rows of yellow, milium-like, post-anal 

 glands, the yellow colour on the hypochondria, forearm and tarsus, palm and 

 sole and the bright colour of the iris. It is the only regional arboreal green Hyla 

 without any appendage on the heel. 



Description: Body robust but not heavy, slightly flattened and tapering 

 somewhat towards the groin. Head slightly shorter than wide, or length and 

 breadth subequal. Hindlimb variable in length, the tibiotarsal articulation 



