FROGS OF SOUTHEASTERN BRAZIL — COCHRAN 211 



The teeth are the same in all; the tongue may be wider or narrower 

 than that of the described specimen. In color, all seem to have a 

 similar coarse pattern, which in the described specimen is partly 

 incomplete. As usual, this pattern is best seen in half-grown frogs, 

 for in adults it almost disappears on the bony rugosities of the head. 

 A pale rectangular spot appears on the occiput just behind the eyes; 

 around it is a branching black marking, of which the anterior branch 

 goes along the snout, a branch goes to each eye, another pair widens 

 on the occiput and goes along the back enclosing a very irregular pale 

 spot, and sometimes becoming attenuate or breaking off. Just in 

 front of the sacrum a heavy large dark blotch occurs, often continuous 

 with the dark head markings, its posterior prolongations very irregular, 

 enclosing several light sacral spots, and gradually becoming the dark 

 borders for the ocellated lateral spots found on the described specimen, 

 which has the typical leg and arm markings. The anterior dorso- 

 lateral region is usually without markings, except for a few small 

 black dots. 



Remarks. — This rather sluggish frog lives by day in bromeliads. 

 When disturbed, it crouches and tries to hide under the leaves. Its 

 skin is not slimy in spite of its rather glandular appearance. The call 

 of the adult male is a hoarse cawing note, grau, grau. The eggs are 

 laid in the shallow waters of a lagda, and tadpoles and young are 

 found from September to December. It is common in the State of 

 Rio de Janeiro. 



Live specimens allowed the freedom of the laboratory kept quiet 

 during the day, concealed in some dark crevice usually near the 

 water pipes, but at night then- activity was very great, as they evidently 

 sought food only at that time. It was evident that they possessed a keen 

 sense of locality, for they found their way into the same crevice each 

 time at the approach of daylight. An observation was once made by 

 the collector Joaquim Venancio on a frog in a bromeliad, near Man- 

 guinhos, that for four months slept daily in the same spot in a leaf- 

 axil, above a few inches of rainwater that had been caught there. 



Some young frogs at the end of metamorphosis, taken at Man- 

 guinhos in January 1923 (USNM 96127-9), measure 20, 19, and 18 

 mm. respectively. 



Specimens examined 



BRAZIL: MHNP 4608 (cotype of Hyla nigrolineaia) , Vautier; MHNP 4609 (co- 

 type of Hyla nigromaculata) , Vautier. 

 Bahia: Bahia, USNM 75987, de Lacerda. Toca da Onga, USNM 52609, 



Rose, June 27, 1915. 

 DisTRicTO Federal: Manguinhos, USNM 96127-9, A. Lutz, January 1923; 

 USNM 97377-9, Venancio, January- April 1935. Rio de Janeiro, USNM 

 81139, A. Lutz, Dec. 20, 1938. 



