Palaeozoic Arachnida of North America. 87 



2. Arthrolycosa danielsi n. sp. 



From the Pennsylvanic (Lower Allegheny) of Mazon Creek, 

 Illinois. 



3. } Arthrolycosa sp. Pocock, Carb. Arachn., 191 1, p. 34, fig. 10. 



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

 Fritsch refers to the genus Arthrolycosa the following species from 

 Bohemia, which according to Pocock " represent at least six genera 

 and possibly as many families if the drawings are to be trusted." 



1. A. carbonaria (Kusta) 



= Scudderia carbonaria Kusta, Sitz. k. k. Gesell. d. Wiss., 1888, 

 p. 203. 



A. carbonaria Fritsch, Pal. Arachn., 1904, p. 6, pi. i, fig. i, fig. 2, 

 text figs. 2, 3. 



2. A. fortis Fritsch, loc. cit., p. 8, pi. i, figs, i, 2, text fig. 4. 



3. A. beecheri Fritsch, loc. cit., p. 9, pi. i, figs. 3—5, text fig. 5. 



4. A. lorenzi (Kusta) 



= Eolycosa lorenzi Kusta, Sitz. k. k. Gesell. d. Wiss , 1885. 

 A. lorenzi Fritsch, loc. cit., p. 10, pi. 2, figs. 2, 3; text fig. 6. 



5. A. (?) palaranea (Fritsch) 



= Palaranea borassifoliae Fritsch, Archiv. f. Landesf. v. Bohmen, 



Vol. II, 1813, p. 8, pi. II, fig. 7. 

 A. (?) palaranea Id., Pal. Arachn., 1904, p. 11, text fig. 7. 



Genus Protolycosa F. Romer. 

 Genotype P. anthracophyla Romer. 

 I. P. anthracophyla Romer, Jahrb. f. Min., 1866, p. 136, pi. III. 

 Fritsch, Pal. Arachn., 1904, p. 12, pi. 13, fig. 14; text figs. 8—10. 

 From the Coal Measures of Upper Silesia, Germany. 



Genus Geralycosa Kusta. 

 Genotype G. fritschii Kusta. 

 I. G. fritschii Kusta, Sitz. k. k. Gesell. d. Wiss., 1888, p. 194, fig. r. 

 Fritsch, Pal. Arachn., 1904, p. 14, pi. 3, fig. i ; text figs. 11— 13. 

 From the Coal Measures of Rakonitz, Bohemia. 



Genus Rakovnicia Kusta. 

 Genotype R. antiqua Kusta. 

 I, R. antiqua Kusta, Sitz. k. k. Gesell. d. Wiss., 1884, p. 400, pi. I. 

 fig. 3. Fritsch, Pal. Arachn., 1904, p. 15, pi. 2, fig. 4 ; text fig. 15, 

 From the Coal Measures (Noegerathienschiefer) of Rakonitz, 

 Bohemia. 



