AMPHIBIA. 241 



immature. It is, however, hardly conceivable that the marked differences which 

 they exhibit can be explained on the basis of sexual dimorphism. If this should 

 turn out to be the case it would be unique in the genus. I prefer to believe that 

 there are two related species representing this remarkable section of the genus, 

 probably as in so many other species, one confined to the western region and the 

 other to the eastern. The differences having arisen in these cases probably not 

 so much through isolation as through the extremely different environmental 

 conditions. 



I have named this remarkable species for its discoverer, my hospitable 

 friend Mr. C. T. Ramsden, of San Carlos, Guantanamo. 



The stomach of this specimen was filled with partially digested ants and 

 small beetles. The locality whence it came is at a considerable altitude above 

 sea level. The type of B. longinasus came from a lowland stream. 



Bufo peltacephalus Tschudi. 

 Tschudi, Class. Batr., 1838, p. 52. Boulenger, Cat. Batr. Sal. Brit, mus., 1882, p. 325. 



Boulenger cites p. 89 of Tschudi's work as the original description. This 

 refers to a nomen nudum only; the short description, which is, nevertheless, 

 perfectly recognizable, is with many others intercalated in the general discussion 

 of the Bufonidae. 



This is the most widely distributed of the four species of toads known from 

 Cuba. The Museum has specimens from Pinar del Rio, San Diego de los Bafios, 

 Havana, Guantanamo, and Santiago de Cuba. All four of the species are con- 

 fined to Cuba. 



The theory that the West Indian toads are a disappearing group is not 

 entirely tenable. This species and Bufo empusus exist in large numbers, although 

 their appearance is extremely erratic, almost comparable to that of Scaphiopus 

 in the eastern United States. Once their mode of hiding becomes known, they 

 may be obtained easily. About Pinar del Rio this species excavates a deep bur- 

 row under a loose rock, and by turning rocks they may often be found. In 

 other places, they five about houses, especially in the mouths of the rain-water 

 drains. They are often seen moving about at night, their sallies being apparently 

 far more frequent than those of Bufo empusus. 



Bufo gutturosus Latreillb. 

 Latreille, Hist. nat. Rept., 1802, 2, p. 135. Boulenger, Cat. Batr. Sal. Brit, mus., 1882, p. 324. 



Upon comparing an adult toad from Haiti with a Bufo lemur Cope, the 



