168 ANNALS NEW YORK ACADEMY OF SCIENCES 



number of specimens, on which this report is based, much larger than 

 any previously made in Porto Eico and equaling in completeness that of 

 the National Museum. 



The present paper is preliminary to the general account of the herpe- 

 tology of Porto Eico to be published by the New York Academy of 

 Sciences in the volumes embodying the results of the Scientific Survey 

 of Porto Eico and the Virgin Islands. 



AMPHIBIA 



Bufo Laurenti 

 Bufo lemur (Cope) 



This species, five specimens of which were collected at Coamo Springs, 

 has previously been known from the north side of Porto Eico; the only 

 exact locality being given as Arecibo by Stejneger. Its occurrence at 

 Coamo Springs, nearly at the opposite side of the island, proves that it 

 is widely distributed. 



The five half -grown specimens are so nearly uniform and were found 

 in so circumscribed an area that they probably are members of a single 

 brood. They agree in coloration with the juvenile specimen described by 

 Stejneger (1904, p. 572) and all show the hour-glass shaped dark mark 

 on the shoulders. The dimensions of one of these specimens may be 

 compared with those of an adult recorded by Stejneger : 



A. M. N. H. U. S. N. M. 



No. 10151 No. 27148 



Tip of snout to vent 37 mm. 83 mm. 



Tip of snout to posterior edge of tympanum 12 " 29 " 



Greatest width of head 13 " 32 " 



Foreleg from axilla 21 " 51 " 



Hind leg from vent 37 " 99 " 



The stomach contents of these specimens included ant remains, beetle 

 wings, an insect larva, and segments of a small millipede. 



Leptodactylus Fitzinger 

 Leptodactylus albilabris (Gunther) 



The following localities are represented by sixty-three specimens in 

 the collections : Adjuntas, Aibonito, Bayamon, Caguas, Coamo Springs, 

 Maricao, San Turce, Utuado, El Yunque, and Culebra Island. 



This species exhibits a great variability in coloration, with a relative 

 uniformity in structural characters. Fowler (1918, p. 3, Fig. 1) has 



