102 Proceedings of the Biological Society of Washington. 



Alsophis anegadae, sp. nov. 



Type, an adult, M. C. Z. No. 12,083, from Anegada, British Virgin 

 Islands, March, 1917, J. L. Peters, collector. 



Two snakes from Anegada are both alike in having a squamation simi- 

 lar to A. antillensis but in being pale ashy gray in color, the fifth scale 

 row not parti-colored, but with a median streak of black. The upper 

 lips are immaculate white, unspotted. 



This coloration is probably correlated with the fact that environmental 

 conditions are very different upon Anegada from those characteristics of 

 Porto Rico and the other islands of the Virgin group. 



Amphibia. 

 Bufo turpis, sp. nov. 



Type, an adult, M. C. Z. No. 4099, from Virgin Gorda, British Virgin 

 Islands, February, 1917, J. L. Peters, collector. 



Very similar to Bufo lemur (Cope) of Porto Rico, only differing in a 

 few relatively inconspicuous characters. The flange-like labial margin is 

 sharper and thinner in turpis ; the snout is slightly more projecting and 

 depressed and the median cephalic ridges are more widely separated, the 

 forehead being rather more deeply concave. The color is ashy gray, the 

 asperities are tipped with black ; there are two dark ocelli upon each 

 thigh. 



By the merest chance a negro lad, near Spanish Town, Virgin Gorda, 

 found this toad either under or in a water barrel — Peters was not sure which. 

 No one to whom he showed it had ever seen a similar creature nor did 

 the offer of a large reward bring forth a second specimen. Indeed, the 

 fact that there was a resident toad about was a possibility entirely unsus- 

 pected by every one. Whether a toad, equally rare, or of similarly retir- 

 ing habits occurs upon Tortola and St. Thomas may never be known, 

 but we can hardly doubt that once there was one. Stejneger's account 

 of finding Bufo lemur is almost as astonishing as Peters' good fortune 

 (see Herp. of Porto Rico, 1902 (1904), p. 573). Reinhardt and Liitken 

 knew of no indigenous toad in this region though (1. c, p. 202) they say 

 that toads occasionally appear in St. Thomas carried in lumber from 

 Haiti and Vieques. This statement is wholly incredible and refers, at 

 that, they say only to Bufo marinus (L. ) which has been artificially in- 

 troduced to most of the West Indies. Reinhardt and Liitken evidently 

 had their facts wrong, for Bufo marinus, a species impossible to mistake 

 for any other, has never been introduced into Haiti or Vieques. Proba- 

 bly these authors had been informed that Hylas or other arboreal ' ' toads ' ' 

 were occasionally carried about, for this occurs commonly. 



Eleutherodactylus antillensis ( Reinhardt and Liitken). 



Series from both St. Thomas and Tortola are the same as examples from 

 Vieques. It was previously unknown from Tortola. Dry weather con- 

 ditions made the collecting of Eleutherodactyli very difficult, and on St. 



