Tertiary Spiders and OpUiouids. 253 



coxae. The clielicer?e are larg'e and heavy. A dark area not 

 shown in the drawing, but having the appearance of a copulatory 

 apparatus of a male pedipalp, is visible at a little distance in front 

 of the chelicer?e. The abdomen is perfectly oval. The legs are 

 long, in order 1243. The end of the first leg is difficult to trace, 

 but the entire leg is considerably heavier than the fourth leg. 

 ]\Ieasured to its visible end it is 15.7 mm. long, the second leg — 

 13 mm., the third — 6 mm., and the fourth — 9 mm. 



Linyphia pachygnathoides n. sp. {Text figures 22 and 2j). 



One male from Florissant, No. 38124 in the Collection of the 

 U. S. National Museum. 



Figure 22. — Linypliia pachygmithoidcs n. sp. Specimen No. 38124. x 3.33. 



The name chosen for this species is to indicate a close resem- 

 blance in the structure of its pedipalp to that in the recent genus 

 Pachygnatha. As our textfigure 2^ shows, the tibia of the pedi- 

 palp has no apophysis. The end of the tarso-metatarsal joint pro- 



