600 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 95 
A total of 71 specimens was taken. Two series are numbered in 
the collection: U.S.N.M. Nos. 116043-116053 from Cuautlapan, 
Veracruz, January, 1939 and 1940, and August 7-14, 1940, and 
U.S.N.M. Nos. 116054-116069 from Finca Judrez, Chiapas, May 8-10, 
1940. There are no constant differences between the two series. 
The southern specimens occasionally have the green stripe continued 
along the entire dorsal surface of the femur. In the northern speci- 
mens it is usually terminated some distance from the pelvis (body). 
The transparent area of the lower eyelid has a network of silver 
rather than the vertical lines of dacnicolor and callidryas. In males a 
vocal sac is present and a horny nuptial area on the base of the first 
finger. One specimen has a strangely curved spine (“humped back’’), 
not, apparently, due to external injury. 
The 60 specimens from Finca Judrez were collected by Smith on a 
single night. They were congregated about a short, erratic rivulet 
some 250 feet long, which led across an old and gravelly river channel 
to the river itself. A portion of the rivulet passed between two large 
boulders, between which a narrow but very deep pool of water, 
covered with duckweed, had collected. Bushes and trees well con- 
cealed the rivulet. 
Field notes on the capture read, ‘““The frogs were discovered quite by 
accident. Although they were singing occasionally no attention was, 
given the voices as we passed the rivulet on the nearby trail, for I 
firmly believed the voices to be of the common Leptodactylus melanono- 
tus and thought no further of them. Fortunately, I hesitated slightly 
at the point where the trail crossed the rivulet, and happened to 
observe a clasping pair of these big green hylids, clinging to the side of 
a boulder. Search subsequently revealed that specimens were 
scattered all over the bushes and trees, on rocks near the water and 
even in the water. Several clasping pairs were collected, and the 
voices of singing males were positively traced. 
“Heo-laying was well under way and apparently nearly completed. 
Masses of eges were hanging from bush stems, from leaves and on the 
sides of boulders, invariably over the water. Especially numerous 
were the. masses on the boulders bordering the deep pool mentioned 
above and hanging from tree limbs which extended over this pool. 
“The most interesting discovery of all was that unusual numbers of 
Leptodeira a. polysticta had also collected here to feast on the frog — 
eggs. Ten specimens were collected, and nearly all were either gorged 
with eggs, had started feeding on them, or were observed edging out on 
limbs to reach egg masses. Several were caught with the telltale eggs 
still adhering to their lips. One snake was observed while it rather 
hastily crawled out on a limb, found an egg mass, and started eating it. 
This ege mass was about ten feet above the surface of the water and 
was the highest observed. 
