J. a. Emerton — Spiders of the Family TJiomisidm. 367 



of the cephalothorax is narrowed near the dorsal groove and widened 

 in front a little behind the eyes. PI. xxix, fig. 6. The abdomen 

 has the usual markings, all indistinct. The legs are marked more 

 nearly alike than in the other species. The femora are all thickly 

 spotted with brown, and the third and fourth have a large dark spot 

 at the end. The other joints are all light with dark rings at the 

 ends. The inferior process of the tibia of the male palpus is large, 

 rounded at the base, and turned outward at the tip. PI. xxix, fig. 

 6a. The processes of the bulb are small and both turned inward 

 at the points. The tarsus is curved downward a little at the end. 

 One male, only, from the White Mountains, New Ilampshii-e. 



Coriarachne Thoreii. 

 The cephalothorax and abdomen are both very much flattened, 

 not more than half as high in proportion to their width as in 

 Xysticns. The cephalothorax is flat on the top, not rounded up 

 from the middle, as in Xysticvs. The head is narrower and more 

 distinctly separated from the thorax by depressions at the sides. 

 The arrangement of the eyes is the same as in Xysticus, except that 

 the two roAvs are nearer together and lower. The male palpus has 

 a small thin tooth on the end of the outer process of the tibia and 

 there are no appendages to the under side of the bulb as there are in 

 Xysticus. 



Coriarachne versicolor Keys., Spinnen Americas, Laterigradc-e, 1880. 

 Plate XXIX, figures 7-7a.. 



The female is 5 or 6™"' long with the cephalothorax 2-5'"'" wide. 

 The colors are black and gray on a white or yellowish ground, in 

 irregular spots that vary in size in difl^erent individuals. There is 

 usually a dark spot in the middle of the cephalothorax in front of 

 the dorsal groove, and behind the eyes ai-e four spots more or less 

 run together and connected with smaller spots behind them. Along 

 the sides of the thorax are four pairs of spots, the hinder pair largest. 

 In the male these spots all connect together and the ce})halothorax 

 is often nearly black. The legs are covered with small dark spots 

 and have larger spots near the ends of the joints and along the 

 middle of the femur. In the male the femur, patella and tibia of 

 the first and second legs are much darker than the other joints. 

 PI. XXIX, figs. 7, la. 



The epigynum has the opening a long distance from the transverse 

 fold and divided into two by a ridge that widens backward, PI. 

 XXIX, fig. 7c, much like the epigynum of C. depressa, of Europe. 



