Barbour: Reptiles and Amphibians of the Isle of Pines. 305 



from various parts of Cuba and the Bahama Islands. The species is 

 largely nocturnal, like so many Boiids, and is singularly harmless and 

 inoffensive. There is no distinctive Spanish name for these snakes; 

 we have usually applied to them the names " wcja5/to5," "jubitos" 

 or similar diminutives. In the Bahamas the " conchs " call them 

 "Thunder-snakes," since they appear so frequently after rain-storms, 

 drowned out from their subterranean hiding-places. 



20. Alsophis angulifer (Bibron). 



Unfortunately our party did not meet with this species upon the 

 island. Mr. Link secured a series, but they have become so darkened 

 through faulty preservation that it is impossible to say whether a 

 separation should be made on the same sort of characters as those 

 which serve to distinguish so sharply the insular Leimadophis from 

 the Cuban. 



21. Leimadophis nebulatus sp. nov. (PI. XXVIII, figs. 1-2.) 



Type an adult male, Mus. Comp. Zool., No. 11092, from the Sierra 

 de Caballos, Isle of Pines, W. I., collected March, 1915, by Barbour, 

 Brooks, and Rodriguez. Paratypes in Carnegie Museum, Nos. 302 

 to 308 and 1535; G. A. Link, collector. 



This form does not differ from L. andrecB of Cuba in squamation, 

 but it does differ regularly and definitely in color-pattern. I have 

 sufficient material to show that this character is really diagnostic, as 

 is not always the case in reptiles. 



In the type the lateral boundary between the dark, almost black 

 dorsal and the ivory-white ventral areas is not clearly defined, and there 

 are irregular dark-centered rhombs of white extending up on the sides 

 of the anterior part of the body, sometimes almost meeting at the 

 mid-dorsal line. Along the sides are many irregular scattered white 

 spots. The figures (c/. Plate XXVIII, figs, i and 2), show the details. 

 In Cuban specimens there are no such extensive white markings, but 

 only occasional scattered white dots or vertical or horizontal series of 

 small dots, more often no white at all in the dark dorsal and lateral 

 zones. 



The specimens collected by Link at Los Indios show the same 

 markings as the type, less strikingly, however, since they have been 

 darkened in color by being preserved in too strong formalin. 



As for variation in the Cuban species, I may say that the pattern is 



