SCHMIDT, THE HERPETOLOGY OF PORTO RICO 169 



figured the extremes of color pattern in Porto Rican specimens. Of fifty 

 specimens in the present series, seven have the broad median stripe on 

 the back, the others varying chiefly in the distinctness of the dorsal V- 

 shaped markings. The measurements of the largest specimen and of one 

 apparently recently transformed are as follows : 



A. M. N. H. 

 No. 10182 No. 10036 



Tip of snout to vent 49 mm. 1 16 mm. 



Tip of snout to posterior edge of tympanum 18 " 7.5 " 



Greatest width of head 17 " 7 



Foreleg from axilla 29 " 10 " 



Hind leg from vent to tip of longest toe 78 " 24 " 



Eight of twenty-five stomachs examined were empty. Four contained 

 land snails; two contained spiders (one a large lycosid spider and egg 

 sack); two contained ants; two contained beetles; two contained bugs; 

 two contained flies (Muscidas) ; one a small moth; one a large caterpillar; 

 one a medium-sized cockroach; and seven the remains of an unidenti- 

 fiable insect. 



The nest of this species was observed by Stejneger (1904, p. 579) 

 under a flat stone in a stream. Peters (1877, Monatsber. Akad. Wiss. 

 Berlin, 1876, p. 709) records one observed by Gundlach in a "wet bur- 

 row." At Coamo Springs, on the terrace behind the bath-houses of the 

 hotel, the water of some of the springs forms a permanent rivulet at the 

 base of the cliff. Lepfodactylus albilabris was abundant on the terrace, 

 beneath loose stones. Under a large stone at the edge of the creek, on 

 August 27, 1919, I found a shallow, rounded excavation, 6 or 7 cm. in 

 diameter and about 3 cm. deep, filled with a mass of white foam, in 

 which were the small tadpoles of this species (12 mm. in length, body 

 3-4 mm.). There were between seventy-five and one hundred tadpoles 

 in the foam-mass, and not confined to the central hollow, as described by 

 Stejneger. The bottom of the excavation was about 3 cm. above the 

 water level. Two similar excavations, though empty, were discovered in 

 the immediate vicinity, in the same relative position with reference to 

 the water. On August 29, near Bayamon, a small mass of foam, between 

 •) and 4 cm. in diameter, containing similar tadpoles, was found under 

 a stone on a hilltop, with no water whatever in the neighborhood. On 

 October 1, near the Forester's cabin, on El Yunque, at about 1200 feet, 

 a nest of this species was observed under a rotten log, beside a pool of 

 standing water (also at a slightly higher level than that of the water). 

 This nest contained between 150 and 200 eggs uniformly distributed 



1 144 mm., given by Stejneger (1004, pp. 576, 578). is obviously a misprint. 



