306 Annals of the Carnegie Museum. 



equally fixed. (See PI. XXVIII, figs. 3 and 4) Among twenty speci- 

 mens only one shows any tendency toward the condition in nebulatus, 

 and this is an old specimen, which came many years ago from Prof. 

 Felipe Poey, and which served as one of the types of Dromicus cuhensis 

 Garman. It is not impossible that some correspondent of Poey, or 

 perhaps even Gundlach himself, got the specimen in the Isle of Pines, 

 and that it got mixed with Cuban material and sent here. 



Seven Isle of Pines specimens average 143 for ventral scale-counts, 

 while the same number of Cuban examples average 144. There is 

 no greater difference in the average number of subcaudals, while the 

 number of scale-rows is seventeen in all. 



The specimen, which I have made the type, was found in dry scrub- 

 country near the Sierra de Caballos. We recognized at first sight 

 that it was far whiter in appearance than Cuban specimens. In Cuba 

 L. andrea. is a common snake, found in cultivated lands in wooded 

 regions, under stones, burrowing in the ground. It is not as fond 

 of wet swampy country as is Alsophis angulifer. The habits of 

 L. nehidatus are probably just the same. 



22. Tretanorhinus insulae-pinorum sp. nov. 



Type, an adult, Carnegie Museum No. 311, from Los Indies, Isle 

 of Pines, W. I., collected by G. A. Link. Paratype, Mus. Comp. 

 Zool., No. 11,190. 



This species differs from the Cuban T. variabilis in having regularly 

 twenty-one, instead of nineteen rows, of scales around the body. I 

 have examined three examples taken by Link at Los Indios and found 

 this condition common to all. The series of Cuban examples in the 

 Museum of Comparative Zoology, consisting of one from the Rio Tana, 

 near Manzanillo, one from San Diego de los Bafios, four from Soledad, 

 near Cienfuegos, and three from the Rio Cuyaguateje near Guane, all 

 taken by the writer during various Cuban excursions, have nineteen 

 rows of scales. There do not seem to be other differences in squa- 

 mation and the color is the same, so far as one may judge from Mr. 

 Link's material preserved in formalin. 



This nocturnal water-snake is called Catibo in the Isle of Pines by 

 the natives. This is the same name which is used in Western Cuba. 

 The catibo leads a colorless existence, spending its daylight hours 

 hidden beneath stones, roots, or drift-rubbish in some creek or brook. 

 By night it fares forth a-hunting and if one follows along the water 



