Alexander Peiruiikevilch, 



Fig. 07. 



Figure Oj. — Styloce/liis beccani 



Th., Same, ventral surface. (From 



Hansen and Sorensen, On two 



Orders of Arachnida, 190^.) 



(iemis y emastomoides Thevenin 1902. 



I. A', elaveris Thcv.,Bul]. Soc. Geo). 

 France, (4), Vol. I, 1902, p. 609, 

 pi. XIII, fig. 2. Fritsch, Pal. 

 Arachn., 1904, p. 29, text fig. 34 

 Pocock, Carb. Arachn., 1911, 

 p. 83, text fig. 42. 



From the Coal Measures of 

 Commentry, France, and Ellis- 

 muir, Scotland. 



Genus Dinopilio Fritsch 1904. 



I. D. gigas Fritsch, Pal. Arachn., 

 1904, p. 30, pi. 5, figs. 3-5, text 

 fig- 35- 



From the Coal Measures of 

 Rakonitz, Bohemia. 

 I refer also to this order the two 

 imperfectly preserved specimens 

 from North America, representing 

 two new species of the new genus 

 Protopilio, although they are far 

 from being typical Opilionids. 



Protopilio n. gen. 

 Coxae of all legs without maxillary lobes, those of the fourth pair 

 fully twice as long as first coxae. Sternum oval. Trochanters one- 

 jointed. Legs long and slender. Genotype P. longipes n. sp. 



Protopilio longipes n. sp. 

 Plate X, fig. 57 ; text fig. 68. 

 The type and only specimen of this species, No. 171 of the Peabody 

 Museum, unfortunately presents onboth hal ves of the nodule the 

 ventral surface alone. It is therefore impossible to say anything about 

 the cephalothorax and the abdominal tergitcs. If judged by the ap- 

 pearance of the ventral surface, the abdomen is broadly joined to the 

 cephalothorax. The number of visible sternites is nine. The first 

 sternite is small, triangular. The second sternite is by far the largest 

 with a recurved anterior edge. The following two sternites are al- 

 most as long as the second. The remaining sternites are very short, 

 with parallel edges with exception of the ninth which is triangular. Ster- 



