548 Dr. H. Woodward—On Arthropoda of Coal-measures. 
A table of the orders of Arachnida (after Fritsch) will be found 
in the Groroeicat Macazine for 1904 (pp. 472-474), which will give’ 
a general notion of the fossil forms, of which 39 genera and 67 species 
are recorded :— 
87 Carboniferous and Permo-Carboniferous from Bohemia. 
6 Carboniferous from Silesia. 
a i Dresden Museum. 
% 3 Bavaria. 
*s >» France. 
o By Belgium. 
hs ut Scotland. 
a Ba England. 
a Be South Wales. 
Pet », Arkansas, U.S. America. 
* ‘3 Tilinois, U.S. America. 
SHRP OH ep pE 
' To these we may add :— 
1 Scorpion from the U. Silurian of Gotland. 
2 ” ” 9 Scotland. 
1 ” ” 3  N. America: 
Fie. 5.—Anthracomartus trilobitus, Scudder, 1884. Proc. Amer. Acad. Arts and. 
Sci., vol. xx, p. 17; Comptes rend. soc. ent. Belg. (3), No. 62 (1885), 
p- 85, fig.; Mem. Boston Soc. Nat. Hist., vol. iv, No. 9 (Boston, 
1890), p. 451, pl. xxxix, figs. 7-10. Middle Coal-measures: Sparth, 
near Rochdale, Lancashire. Presented to the Geological Department of 
the British Museum (Natural History) by Mr. W. H. Sutcliffe, F.G.8. 
The specimen from Sparth, like so many other examples of this 
widely distributed type, displays only the dorsal or tergal aspect of an 
imperfectly preserved prosoma and a nearly complete opisthosoma of 
an Anthracomartus, which has none of the appendages preserved, and 
the split nodule containing the impression has but a fragmentary 
counterpart which assists but little to eke out a description of 
the other and larger half. The specimen is 24mm. in length by 
15mm. in breadth. Of this the prosoma is 8 mm. in length and about 
8mm. in breadth; the opisthosoma is 17 mm. long by 15 mm. across 
the widest part, but the margin of the body is more or less broken 
(see Fig. 5). The opisthosoma shows a median dorsal region which 
is 8mm. broad just behind the prosoma, and diminishes in breadth to. 
