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. fero.(Ginther)-before him. (Cf. Mem. Soc. Cubana 
hist. nat., 1916, 2, p. 127). 
