■8 



TERRESTRIAL CARBONIFEROUS ARACHNIDA. 



differences result from tlie greater development of tlie pre-ociilar, and lesser 

 devel()[)ment of the post-ocular region of the carapace in Eophrynns than in 

 Krn^chcritt. In both these genera, as in Aj)hantomnrfiis, it is quite clear that the 

 eyes are situated upon that part of the median area of the carapace that corres- 

 ponds to the anterior of the three pairs of lobes or segments of the lateral horizon- 

 tally extended area. 



The figures and description of the typical specimen of K. nricdel, published by 

 Haase and Fritsch, are so irreconcileably discrepant that an accurate conception of 

 the structure of the fossil is impossible. The species described below as new is 

 certainly akin to that species, and I have decided on that account to refer it to the 



Fio. 40. — Kreischeria verrucosn, sp. ii. ; dorsal surface, about three times nat. size. — Coal Measures ; South 



Wales. Museum of Geological Survey, London. 



genus Kreisclicria ; Init if the restoration of K. n-iedei given by Fritsch is, as he 

 claims, accurate, a new genus will probably have to be erected for K. verrucosa. 



Kreischeria verrucosa, sp. nov. Plate III, fig. 5; Text-figure 40. 



Carapace with four large and low suboval tubercles, lying behind the ocular 

 tubercle and between it and the anterior end of the median sulcus, and set end to 

 end in a rosette-shaped pattern ; the anterior sulcus of the median area passing to 

 the angle formed by the point of contact of the two tubercles on each side ; a 

 small median tubercle in the angle of the rosette just behind the ocular tubercle ; 

 the summit of the median elevated area of the carapace coarsely and rather closely 

 tubercular ; the sloping sides of the elevated area apparently smooth ; the three 

 segments of the horizontally extended area similarly tubercular, although the 



