1973] 
van Helsdingen — Linyphiid Spiders 
49 
Figure 1. Map showing distributions of Taranucnus ornithes (Barrows) 
(•) and Oreonetides recurvatus (Emerton) (★). 
The cf holotype and $ paratype of Taranucnus durdenae, from Rec- 
tor, Pennsylvania, should be in the American Museum of Natural 
History, New York, but they were not examined by me. 
In the Barrows collection, through kind cooperation of Dr. C. A. 
Triplehorn, one vial with Lepthyphantes ornithes was located. This 
vial contained one and two ? specimens, together with a label 
referring to the Ohio locality. A second vial, with the recorded ? 
from the Smoky Mountains, could not be found. It appears, that 
the single $ specimen from the latter locality has been added to the 
Ohio material. The original description mentions one $ from each 
locality (page 134, ninth line from bottom), while now two females 
are present in the Ohio vial. The description does not give any clue 
as to the sizes of the different specimens, and the mixed series there- 
fore cannot be separated again in accordance with the origin of the 
specimens. 
Name. — I vie dedicated his new species to Beatrice Vogel Durden. 
Barrows did not give any explanation of the derivation of the name 
ornithes , but his remarks on the female epigyne gives us a key: “The 
epigynum (Fig. 7A) appears as if made up of two gasteropod shells 
with the large openings toward the abdomen. When seen from be- 
hind the two parts appear as two bird heads placed beak to beak/' 
The name therefore appears to refer to the two birds, revealed in a 
