Amphibians and Reptiles of Mexico. 307 



whicli the color was examined in life the ground color above was 

 brownish orange (138), the margin of the occipital spot a pale dull 

 yellow (153d), aud the ventral parts black and white or g-ray and 

 white. The colors of the dorsal surface are freqiiently darker 

 however, and the pale raargin of the occipital spot is not always well 

 defined. The dark head markings are quite reg-ular in arrang-ement, 

 consisting' of a band along the canthus rostralis, one from the lower 

 part of the anterior margin of the orbit to the mouth and two from 

 the posterior margin of the orbit on the neck, the lower involving 

 the tympauum. These dark bands wdth the occipital spot are 

 usually margined with pale yellow, and the pale lines that margin 

 the dark bands on the canthus rostralis are offen connected with 

 the anterior margin of the occipital spot to form a triangle. These 

 light bands are frequently more or less obsolete, occasionally 

 entirely so. 



This little amphibian, while not uncommon in the region studied, 

 is so secretive as to be little in evidence. We only found it iinder 

 logs or other decaying vegetable debris in the vicinity of water. 

 It is quite generally distributed on low ground, however, occurring 

 both in the woods and on the prairie. It breeds in the lowland forest 

 pools and in swampy places on the shores of Lake Catemaco, in July 

 and August, and immature individuals were taken in both places. 



Lexytodaetylus albilabris (Günther). 



Common at Cuatotolapam. 



Our specimens of L. alhüahris agree closely , with the careful 

 descriptions of Boulenger (Cat. Bat. Sah, p. 245 — 246) and Stejneger 

 (in: Rep. U. S. nation. Mus., 1902, p. 574-577). In the adults the 

 tibio-tarsal articulation reaches the eye. In life most of those 

 observed were a pale orange brown (162) above, although many 

 were more clay colored (about 167 and 172). In all of the adults 

 the dorsal spots are black or very dark brown and in many the 

 occipital triangle is more or less broken up by a pale center. In 

 all but one of the adults the ventral parts are immaculate except 

 for a dark marbling along the lower lip. In one specimen the sides 

 of the chin are finely sprinkled with brown. In most young specimens 

 the dorsal spots are as in the adults, but in some the dorsal spots 

 are so pale as to be rather obscure. 



This species is about as common as L. caliginosiis in the region 

 about Cuatotolapam, but it is more conspicuous. It was found with 



