88 Alexander Petrtmkevitch, 



Genus Perneria Fritsch. 

 Genotype and only species 

 I. P. saliicoides (Fritsch) 



= Arthrolycosa salticoides Fritsch, Fauna der Gaskokle, Vol. IV, 

 1901, pi. 153, fig. 10. 



P. saliicoides Id., Pal. Arachn., 1904, p. 22, text fig. 27. 

 From the Coal Measures of Nyran, Bohemia. 



Genus Eocteniza Pocock. 

 Genotype and only species 

 I. E. silvicola Pocock, Garb. Arachn., 1911, p. 34, pi. 34, fig. 4. 

 From the Coal Measures of Coseley, near Dudley, England. 



Sub-Order Arachnomorpha. 

 Genus Eopholcus Fritsch. 

 Genotype and only species 

 I. E. pedatus Fritsch, Pal. Arachn., 1904, p. 22, text fig. 28. 

 From the Coal Measures of Nyran, Bohemia. 



Genus Pyritaranea Fritsch. 

 Genotype and only species 

 I. P. iubifera Fritsch, Fauna d. Gaskohle, Vol. IV, 1901, fig. 63. 

 Id., Pal. Arachn., 1904, p. 25, text fig. 31. 

 From the Coal Measures of Nyran, Bohemia. 



Genus Archaeometa Pocock. 

 Genotype and only species 

 I. A. nephilina Pocock, Carb. Arach., 1911, p. 2>7> text fig. 11. 

 From the Coal Measures of Coseley, near Dudley, England. 



DESCRIPTION OF NORTH AMERICAN CARBONIFEROUS ARANEAE 

 Sub-Order Mesothelae. 

 Genus Arthrolycosa Harger 1874. 

 New definition. Cephalothorax longer than wide. Eyes on a 

 tubercle. Genotype A. antique Harger. 



Key to Species of Arthrolycosa. 

 I. Femora of all legs shorter than cephalothorax. Eye tubercle not 

 in line with outer edge of cephalothorax 



A. antiqiia 

 + femur of the first pair of legs almost as long as the cephalo- 

 thorax, the other femora longer than cephalothorax. Eye 

 tubercle touching anterior edge 



A. danielsi 



