16G 



BRITISH FOSSIL CRUSTACEA. 



Assuming it to be, like Jordan's Arthropleura armata, part of the body-segment of 

 some large palgeozoic Crustacean (such as Stylonurus Scoticus, 1 or that singular form named 



B 



Fig. 55. — Arthropleura armata, Jordan. 

 Coal-measures', Saarbruck, Rhenish Prussia. See ' Pala3i>nt<>graphica,' 1856, Band iv, 



taf. 2, figs. 4 and 5. 



by me Prcearcturus gigas, from the Old Red Sandstone of Herefordshire), 2 it seems highly 

 probable that this fragment has no affinity with Eurypterus at all. 



1 See below, page 126, and PI. XXII and XXIII. 



2 ' Trans. Woolhope Naturalists' Field Club,' 1870, p. 266 ■ ' Fossil Sketches,' No. 9, figs. 1 and 2, and 

 No. 10. 



