412 MR B. N. PEACH ON SOME NEW SPECIES OF FOSSIL SCORPIONS. 
. 18a. Portion of test detached from specimen fig. 18 to show nature of pits and hairs. 
Magnified about 20 diameters. 
. 18d. Portion of test highly magnified to show cellular external layer. 
. 18¢c. Bundle of muscular fibres seen in digital joint of palpus of fig. 18. Magnified 10 
diameters. 
. 19. Five tail segments of scorpion, with portion of seventh abdominal segment, all 
attached, natural size, from Coldstream Bridge, to compare with figs. 7 and 20. 
. 20. Tail junk of scorpion, natural size, shows anterior articular surface and longitudinal 
grooving. From Cramond. 
. 21. Poison gland of scorpion, showing the nature of the articulation, hairs, &e. Magnified 
4 diameters. From Larriston Burn, Upper Liddesdale. The depression near the 
narrow end is due to an ostracod shell (Leperditia). 
. 22. Poison gland and sting of recent scorpion, magnified 3 diameters, for comparison 
with 21. 
. 23. £. carbonarius (Meek and Worthen). Reproduction of Messrs MEEK and WoRTHEN’S 
figures, from the “ Memoirs of the Geological Survey of Illinois,” vol. iii. p. 560. 
. 23a. £. carbonarius, magnified comb, ibid. 
. 230. B. carbonarius, magnified dorsal plate, ibid. 
. 24. Mazonia Woodiana (Meek and Worthen). Reproduction of Messrs MEEK and WoRTHEN’S 
figure, from the “ Memoirs of the Geological Survey of Illinois,” vol. iii. p. 563. 
. 24a.M. Woodiana, carapace magnified for comparison with the present collection, bid. 
. 25, Cyplophthalmus, senior (Corda), carapace magnified, Reproduction of figure from 
Buckianps’ “ Bridgewater Treatise,” vol. i. pl. 46’, 
List oF LOCALITIES AND GEOLOGICAL HoriIzoNS FROM WHICH THE ABOVE 
FossILS HAVE BEEN OBTAINED, 
CouNTY. LOCALITY. GEOLOGICAL Horizon. 
Fife, Blair Point, near Dysart, : : Coal measures. 
Edinburgh, Redhall, Water of Leith, near Bieta ' Calciferous sandstone series. 
Linlithgow, Cramond, about three miles N.W. from Edinburgh, 
Berwick, Coldstream Bridge, River Tweed, 
Roxburgh, _Larriston, Upper Liddesdale, 
Dumfries, River Esk, near Glencartholm, Langholm, 
95 Dalmeny, Railway Cutting, 
- Lennel Braes, near Coldstream, 
Pathhead Mill, Blackadder Water, near Danse 
The calciferous sandstone series of Scotland is now regarded by the Geological Survey 
as the equivalent of part of the lower portion of the carboniferous limestone series of England. 
