238 Alexander Petrunkevitch, 



Scudder has described four species of Clubiona and one species 

 of Anyphccna. The latter, as I have shown above, is a Drassid and 

 not a Clubionid. Of the former I left only Clubiona arcana in 

 the genus Clubiona on account of the order of the legs, which is 

 the same as in recent species of that genus. For the other three 

 species three new genera had to be established, based on the order 

 of their legs. The number of species placed under the family 

 Clubionidse has been increased to seven by the addition of three 

 new species. 



Table for the Separation of Tertiary Genera of Clubionids. 



1. The fourth leg is the longest Clubiona 



*Not so 2 



2. The first leg is the shortest Eobumbratrix 



*Not so 3 



3. Second leg as long as first Eoversatrix 



*Second leg much shorter Eostentatrix 



Genus Clubiona Latreille. 



The genus Clubiona as limited and defined at present is much 

 more restricted than it was when Latreille first proposed it. It is 

 difficult to say whether the three species referred by me to this 

 genus really belong to it. It did not seem necessary to create a 

 new genus although a number of recent Clubionids possess the 

 same order of legs. As applied to Tertiary spiders w^e may define 

 this genus as possessing the characters of the family and the legs 

 in order 4123. 



Clubiona arcana Scudder, 

 Scudder, Tertiary Insects, 1890, p. 64. Plate 11, fig. 4(5). 



Scudder describes one male No. 2831 and three females Nos. 

 3253, 7087 and 8082 of the collection in the Museum of Compara- 

 tive Zoology of Harvard University and one female No. i. 807 

 and I. 819 of the Princeton Collection. I have examined only 

 No. 2831 (now No. 73), No. 3253 (now No. 74) and No. 8082 

 (now No. 75). The females are poorly preserved. Scudder's 

 description is accurate. It may be added that the spinnerets 

 which are visible in the male are approximated and that the male 

 copulatory apparatus has unquestionable similarity to that of 



