52 Mr. F. 0. P. Cambridge on Ctemform Spiders 



(6) A female, west fork of Gila River, N. M., July Ifi 



{G. H. T. Toicnsend). This looks like a distinct 

 species, but Mr. Fox, after comparing it with the 

 Cresson collection, refers it to americana. The 

 abdomen is not so hairy as in the others, and the 

 hair at the bases of tiie segments after the first is 

 lacking. The punctures on the second segment are 

 conspicuously finer and closer than those on the 

 first. 



(7) Mesilla, N. M., two males on Bigelovia Wri'ghtii, 



Aug. 29, 1896. 



(8) Las Cruces, N. M., two males on Bigelovia Wrighti'i, 



end of August. Two males on Solidago cana- 

 densis by Schaublin's mill, Sept. 3 and 4. 



Mesilla, New Mexico, U.S.A., 

 Nov. 14, 1896. 



VII. — On Ctemform Spiders from the Loicer Amazons and 

 other Regions of North and South America^ with List of all 

 known Species of these Groups hitherto recorded from the 

 J^ew World. By F. O. PiCKARD CAMBRIDGE, B.A. 



[Plates III. & IV.] 



Contents. 



Page 



(i.) Introduction 53 



(ii.) a. Bibliography relating to the Cteniforra Spiders of the 



New World 54 



b. List of new Species and other Forms more especially 



noted 64 



(iii.) Descriptions and Notes 56 



I'art I. — (a) Genera of the Old and New Worlds, containing forms 

 possessing two tarsal claws only, which have been 

 assigned by various authors to tlie Cteuidaj and 



Clubionidse, with Notes on the Type Species 56 



(b) List of Genera and Species of the New World, with 



Descriptions of new Species 60 



Part II. — (a) Genera ot the Old and New Worlds of Forms possessing 

 throe tarsal claws, wliich have been a^^signed by 

 various authors to the Families Ctenidje and Lyco- 



sidje, with Notes on the Type Species 88 



{!)) Characters of a new Genus and Descriptions of new 



Species from the New ^^'orld 95 



Part lU. — Cribellate " Ctenoid " Forms referred by Simon to Fam. 

 Zoropsida?, with two tarsal claws ; Notes and De- 

 scriptions of new Species from the New World .... 101 



