SYSTEMATIC ACCOUNT OF THE SPECIES. 213 



Gundlach remarks that he has found the species in streams near Cardenas 

 living in just the same way as Tretanorhinus variabilis, but he makes no mention 

 of its inhabiting the mangrove areas. In Cuba, where there is but one stream- 

 inhabiting snake, this form may easily have invaded the fresh waters from which 

 it is probably excluded in Florida by the abundance of competing types. The 

 junior author has seen a black "memfso" at Guantanamo which may have been 

 this species. 



Cope's N. anoscopus (Proc. Acad. nat. sci. Phila., 1861, p. 299) has never 

 been rediscovered in Cuba and from the description we believe that Cope had 

 an African species, N. few (Gunther) before him. (C/. Mem. Soc. Cubana 

 hist, nat., 1916, 2, p. 127). 



