Barbour — Notes on the Herpetology of the Virgin Islands. 103 



Thomas not a single example of E. lentus was taken where it abounds 

 and is usually found to be much more common than this species. 



Leptodactylus albilabris (Gfinther). 



Previously known from Porto Rico, Vieques, St. Thomas (type local- 

 ity), St. Croix, and Jost van Dyke, it is before me now in large series 

 from both Tortola and Anegada. With every added locality recorded the 

 probability that its presence in the islands is fortuitous, becomes less and 

 less. The identity of albilabris with labialis is probably a pure case of 

 chance resemblance. The Virgin Islands individuals in the M.C. Z., 

 now many, all differ from the large Porto Rican series in that they do 

 not have the conspicuous white middorsal band so frequent in examples 

 from that island. They have instead irregular arabesque or geometric 

 markings of dark slate, edged with a narrow whitish line. Some speci- 

 mens taken at St. Croix by Messrs. Ruthven and Noble, who chanced to 

 be there together during the summer of 1914, show a very peculiar con- 

 dition. The edge of the snout is projected and thickened as if to serve 

 as a burrowing adaptation. None of these specimens taken during the 

 winter show this modification ; there can be no doubt as to all the indi- 

 viduals being conspecific and this may be a peculiarity assumed only 

 during the mating season. 



A recent dissection of the unique type of Leptodactylus inoptatus Bar- 

 bour from Hayti, made by Mr. G. K. Noble, reveals the very unexpected 

 fact that inoptatus is in reality a giant Eleutherodactylus. It does not 

 seem to be closely related to any hitherto described Antillean species of 

 the genus but it does have certain rather striking features in common 

 with Eleutherodactylus insignatus Ruthven recently described from the 

 Santa Marta Mts. in Colombia. 



