Palaeozoic Arachnida of North America. 



89 



Arthrolycosa antiqua Harger. 



Plate VIII, figs. 43, 44; text figs. 53, 54. 



A. antiqua Harger, Amer. Jour. Sci., (3), Vol. VII, 1874, pp. 



219—223. Scudder, Proc. Amer. Acad. Arts Sci., 1884, p. 15. 



Beecher, Amer. Jour. Sci., (3), Vol. XXXVIII, 1889, pp. 219—223, 



text figs. 1—3. 



Type specimen No. 161, Peabody Museum. The description of 

 this specimen given by Beecher in his excellent paper in 1889, while 



Fig. 52,' 



Figure 53. — Arthrolycosa antiqua Harger, holotype, Peabody Mus. No. 161, 



showing dorsal surface after the abdomen has been all exposed. X -7- 



it has considerably advanced our knowledge of the spider is incorrect 

 in some regards, since the specimen was not entirely exposed. Thus 

 he failed to notice that the terminal joints of the palpi are altogether 

 missing and that the abdomen is larger than it appears on his drawing. 

 I have carefully cleaned the entire nodule and am able to say that the 

 specimen is now completely exposed and appears as drawn in my text 

 figure 53, the dotted parts and the terminal joints of the palpi and 

 legs actually missing. The obverse alone shows the spider. The 

 reverse shows only fractions of legs, but no body. 



Total length without mandibles 22.0 mm. Cephalothorax 9.0 mm. 

 long, 8,0 mm. wide in the middle. All femora shorter than cephalo- 

 thorax. 



