SPIDERS OF THE MARPTUSA GROUP. 



GEORGE W. AND ELIZABETH G. PECKHAM. 



Preface. 



In the following paper we have attempted to classify the 

 spiders formerly included under Marptusa and a few related 

 genera. The group is so rich in closely allied species, and the 

 genera run into each other so gradually, that to get a satisfac- 

 tory classification it is necessary to make very close distinc- 

 tions. We have formed twelve new genera. 



We describe twenty-nine new species. We also re-define a 

 few old species, which are generic types, the descriptions of 

 which are not easily obtainable. 



We have had at our disposal large collections from North, 

 Central and South America, and from the West Indies, as well 

 as from Europe, North Africa, Madagascar and Australia; and 

 smaller collections from India, Japan and the Malay Archi- 



We are very deeply indebted to M. Eugene Simon for his 

 generous assistance in obtaining spiders from many parts of the 

 world, and to Mr. Herbert H. Smith for the use of his large South 

 American collection. We wish also to express our thanks to 

 Mr. W. E. Broadway, who has sent us collections from Trinidad 

 which are exceedingly valuable, from their containing not only 

 many different species, but large numbers of individuals of 

 each species ; to Mr. B. K. Miller for some Japanese spiders, and 

 to Mr. H. F. Wickham for a collection from the Bahama 

 Islands. 



The measurements are given in millimeters. 



