142 Proceedings of the Royal Physical Society. 
XVIII.—On Some Carboniferous Arthropods, with Description of 
a New Genus of Myriapod. By B. N. Peach, LL.D., F.R.S. 
(With. Plate.) 
(Read 24th March 1913. MS. received 15th December 1913.) 
In the spring of 1911, Dr Shand, who was then in charge of the 
Geological Department of the Royal Scottish Museum, Edinburgh, afforded 
me the privilege of examining some fossil Arthropod remains recently acquired 
for the Museum by exchange with Mr J.S. Neil, of Wolverhampton. Among 
them there is a very interesting suite of fossil Arthropods from the Coal 
Measures of Staffordshire, mostly preserved in clay-ironstone nodules, of 
which the following table gives a list :— 
XYPHOSURA. 
Belinurus lunatus, Martin, olim B. bellulus, Konig. 
Prestwichia birtweili, H. Woodward. 
a dance, Meek and Worthen. 
Cyclus johnson, H. Woodward. 
ARACHNIDA. 
Anthracomartus hindi, Pocock. 
CRUSTACEA. 
Paleocaris sp. aff. typus, Meek and Worthen. 
Pygocephalus cooperi, Huxley. 
Anthracophausia sp. 
Myriaropa., 
Paleospherotherium walcotti, sp. nov. 
INSECTA. 
Blattoidea sp. (abdomen of). 
Aedephasma anglica, Scudder. 
Wings of types of undetermined Protorthopterid 
and Paleorthopterid. 
The main object of this paper is to describe a small specimen of rolling 
onisciform chilognathous Myriapod contained in the collection, which carries 
the history of this group back to Carboniferous time. Remarks will also be 
offered regarding some of the Crustacea in the collection which show points 
