1916.] NATURAL SCIENCES OF PHILADELPHIA. 79 



Cambridge to pallescens. McCook has published a description; 

 it goes in genus Eugnatha. 



Pachygnatha brevis. 



This is the real P. xanthostoma of Koch. 



Pachygnatha xanthostoma. 



This is the P. xanthostoma of McCook, but not of Koch; I propose 

 to call it P. mccooki n.n. 



THOMISID^J. 

 Xysticus stomachosus. 



Probably is X. ferox Htz. 



Xysticus feroculus = X. trigultatus Keys. 

 Xysticus distinctus. 



This is apparently a specimen of X. stomachosus, recently trans- 

 formed, in which the parts of the vulva show more distinctly than 

 usual. 

 Xysticus brunneus. 



This is the female of the true X. limbatus Keys. 



Xysticus crudelis = X. brunneus Bks. 

 Xysticus transversus = X. stomachosus Keys. 

 Xysticus lentus. 



This is the male of gulosus, previously not described. 



Xysticus nervosus. 



Unchanged; Emerton has given additional description and figures. 



Xysticus formosus- 



Unchanged, Emerton has given additional description and figures. 



Xysticus limbatus. 



Unchanged; it is a male of the true limbatus of Keyserling; not 

 the limbatus of Emerton. 

 Xysticus quadrilineatus = X. luctans Koch. 

 Xysticus maculatus. 



Immature specimens, probably of X. stomachosus. 



Oxyptila georgiana = O. americana Bks. 

 Oxyptila conspurcata. 



Unchanged; the 0. georgiana Keys, is the same species. 



Misumena rosea = Misumessus asperatus Htz. 

 Misumena georgiana. 



I consider this to be the M. celer of Hentz. 



Misumena foliata = Misumessus asperatus Htz. 



