322 GA.MMARID^, 



which have the shorter and less distinctly pear-shaped 

 hands. 



Professor Westwood thinks that this species may be 

 identical with the N. stygius of Schiodte, since both 

 agree in the more robust form of the animal and the 

 shape of the hands : there are, however, other important 

 differences ; as for instance, the form of the second and 

 third segments of the tail, which, together with the 

 diversity of habitat, will probably prove to be of specific 

 value. 



