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XV .—On some new Species of Fossil Scorpions from the Carboniferous Rocks of 
Scotland and the English Borders, with a Review of the Genera Eoscorpius 
and Mazonia of Messrs Meek and Worthen. By B.N. Preacu, A.R.S.M., 
F.R.S.E., of the Geological Survey of Scotland. (Plates XXII. and 
XXIII.) 
(Received 24th June 1881). 
In the progress of the Geological Survey of the South of Scotland, specimens 
referable to the genus Hoscorpius have been gradually accumulating. In 1876 
J. BennizE, Fossil Collector to the Survey, obtained an example from the Coal- 
measures of Fife. Since then fragments have been disinterred by him and by 
A. Macconocuig, also Fossil Collector to the Survey, from the Calciferous Sand- 
stone series in the counties of Edinburgh, Berwick, Roxburgh, Dumfries, and 
Northumberland and Cumberland. It was not till the spring of last year (1880) 
that they began to be found in such a state as to necessitate a description of 
the fossils. In the summer of that year A. Macconocuiz obtained an almost 
entire example from the neighbourhood of Langholm, in Dumfriesshire. This 
year (1881) J. Bennie has secured several good though fragmentary specimens 
from the neighbourhood of Edinburgh, while A. Macconocuiz has sent in several 
from the counties of Berwick and Northumberland. In my capacity of Acting 
Paleontologist, I have had an opportunity of studying these remains, and by the 
permission of A. C. Ramsay, LL.D., F.R.S., Director General of the Geological 
Survey of Great Britain, and Professor A. Grixiz, LL.D., F.R.S., Director of 
the Geological Survey of Scotland, I have been allowed to describe them. 
Previous LITERATURE RELATING to CARBONIFEROUS SCORPIONS. 
In 1835 Count Sternsere published a description of a fossil scorpion from the Coal formation of 
Chomle, near Radnitz, Bohemia, 
In 1836 Corpa described and named the above specimen under the appellation of Cyclopthalmus 
senior, from the smaller eyes being .srranged in a circlet round the two central larger ones. 
(Corpa in “ Bohmischen Verhandlungen,” 1836, and Wisemann’s “ Archiv,” 1836, vol. ii. 
p. 360). Figured in the Transactions of the Bohemian Museum. 
In the same year Dr Buckuanp reproduced the figures in his “ Bridgewater Treatise,” pls. 46’ and 
46”, fig. 13, the description being given in vol. i. p. 407. 
In 1839 Corpa added a new genus to the Pseudo-scorpions under the name of Miciolabis, the 
specimens being obtained from the same locality as the Cyclopthalmus. 
In 1868 Messrs Mrrx and WortHEN described the remains of a fossil scorpion (Hoscorpius) from 
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