OF THE 



UNIVERSITY 



CHAP. II. THE SPECIES OF MELITA. 9 



not be inherited from a common ancestor, and could 

 scarcely be accordant in their construction. If there were 

 any such accordance not referable to accidental resem- 

 blance among them, it would have to be laid in the scale as 

 evidence against the correctness of Darwin's views. I 

 shall show hereafter how in this case the result, far from 

 presenting such contradictions, was rather in the most 

 complete harmony with what might be predicted from 

 Darwin's theory. 



A second example. We are already acquainted with 

 four species of Melita (M. valida, setipes, anisochir, and 



Fig. 1.: 



Fresnelii), and I can add a fifth (fig. 1), in which the 

 second pair of feet bears upon one side a small hand of 

 the usual structure, and on the other an enormous 

 clasp-forceps. This want of symmetry is something so 



1 Fig. 1. Melita exilii n. sp., male, enlarged five times. The large 

 branchial lamellae are seen projecting between the legs. 



