PLATE I. 



Fig. Page. 



1. Anthracoscorpio dunlopi, sp. nov. ; dorsal view of type and only known 



specimen, nat. size.— Upper Coal Measures, Drumgray, near Airdrie, 

 Lanarkshire. R. Dunlop Collection. The outlines of the carapace 

 and of the anterior terga of the opisthosoma are more clearly 

 defined than in the original. , 21. 



2. Anthracoscorpio buthiformis, sp. nov. ; sternal surface of prosoma and 



tergal plates of opisthosoma, three times nat. size. — Coal Measures ; 

 Coseley, near Dudley. B. M. no. I. 1555. 27. 



2 a. Ditto ; dorsal view, three times nat. size. — Ibid. W. Bgginton Collec- 

 tion, no. 43. The anterior border of the carapace is much more 

 clearly shown than in the original. 27. 



3. Geralinura britannica, sp. nov. ; dorsal view of type specimen, three 



times nat. size. — Ibid. W. Egginton Collection, no. 51. The 

 outlines of the segments of the chela are more clearly shown than 

 in the original. 29. 



4. Grseophonus anglicus, sp. nov. ; dorsal view, three times nat. size. — Ibid. 



W. Egginton Collection, no. 40. 32. 



4 a. Ditto ; dorsal view of type specimen, two and a half times nat size. — 



Ibid. W. Egginton Collection, no. 1. 32. 



4 1). Ditto ; sternal surface of prosoma and tergal plates of opisthosoma, 



two and a half times nat. size. — Ibid. W. Egginton Collection, 



no. 20. 33. 



4 c. Ditto ; same surfaces as in fig. 4 b, three times nat. size.- — Ibid. W. 



Egginton Collection, no. 2. 32. 



-Id. Ditto; dorsal view of carapace, four times nat. size. — Coal Measures, 



near Neath, South Wales. Museum of Geological Survey, Jermyn 



Street, London. 33. 



