402 MR B. N. PEACH ON SOME 
and show that the smallest portion of skin is sufficient to reveal the nature of 
its original possessor. 
Collector—A. MAcconocuiE. 
Locality.—River Esk, four miles south of Langholm, Dumfriesshire. 
Horizon.—Near the base of the Cementstone group (Lower Carboniferous). 
Since the above was written another specimen of this smooth-skinned scor- 
pion has been obtained by J. BENNIE among some of the shales forming the 
plant-bed from Redhall, Water of Leith, near Edinburgh. Fortunately this 
specimen exhibits the interior of portion of the carapace which, though very 
imperfect, shows that it had similar large mesial eyes to those of ZL. tuberculatus. 
The only portion of the antero-lateral margin preserved bears one of the small 
lateral eyes. The cheeks of the carapace have been embossed into lobes like 
E. tuberculatus, but no tuberculations are observable. The inner side of the 
lobes is marked with radiating wavy grooves, which are probably vascular 
markings. Similar markings are found on casts of H. inflatus to be described. 
The junction line of the raised lobes with the posterior wrinkled portion of the 
carapace is strengthened by buttresses of folded test, and the posterior margin 
by a wide band which is corrugated transversely. Some of the body segments 
are preserved, but in too crushed a state for study. It also shows the 
cheliceree, which are strongly denticulated One of the palpi of the same 
form as those of fig. 2 shows that the nipping edge is supplied with numerous 
fine saw-like teeth and terminates in a bluntly-hooked end. Four of 
the tail segments are also preserved. One flattened laterally exhibits the 
anterior articular surface, and in addition shows that the body of the segment, 
which is cylindrical, was ornamented beneath with longitudinal ridges, four of 
which are seen on the exposed side, showing that it must have been fluted 
like an Ionic pillar, see fig. 2d. Another segment lying loose has been com- 
pressed vertically, and shows the posterior articular face as a perfect ring, and 
is seen to pass down through more than one layer of the shaly fire-clay in 
which it is embedded. This scorpion must have been considerably dismem- 
bered before being covered up previous to fossilization. 
Locality—Redhall, Water of Leith, near Slateford, Edinburgh. 
Horizon.—Calciferous Sandstone series. 
Eoscorpius euglyptus, n. sp. (Plate XXII. figs. 3 to 3d). 
A large species, so called from the beauty of its combs. 
Cephalothorax.—Carapace unknown. The chelicere are strongly denti- 
culated. Palpi large and cheliform, the basal joints strongly tuberculated, 
and acting with the coxze of the first walking limb as jaws. The second 
joints of the palpi are marked on their under side with diverging lines of 
tubercles. The whole limb is strong and set with tubercles and strong spine- 
