410 
Fig. 
Fig. 
. 2k, 
ig. QU. 
MR B. N. PEACH ON SOME 
EXPLANATION OF PLATES. 
Pirate XXII. 
Ventral aspect of a recent scorpion of the family Buthides (Koch), for comparison with 
the fossils with which it closely agrees in its proportions.* 
Eoscorpius glaber, N.S. Natural size, The darker portions show where the test is 
retained—the lighter portions, the parts represented by casts. This remark holds 
good for all the figures. From Langholm. 
. E. glaber. Counterpart of fig. 2. 
. Figure combining all the parts exhibited in figs. 2 and 2a to compare with fig.1. The 
darker shaded portions show the ventral parts, and the lighter, ihe dorsal, the dotted 
portion of the tail left unshaded is added from inference. 
. £. glaber, Natural size. From specimen obtained from Redhall, showing carapace, 
several body segments, chelicerze, chele, some of the walking limbs, and four 
tail joints of a dismembered individual. It occurs in a shaly fire-clay crammed 
with seeds, Carpolithes Grantoni (Linley and Hutton), fern stems, and leaves 
(Cyclopteris, &c.). 
. Interior of carapace of fig. 2c, showing mesial eyes as depressions, one lateral eye, raised 
lobes with vascular markings and posterior margin. Magnified 3 diameters. 
Left mandible of fig. 2c to show denticulation. Magnified 3 diameters. 
Right palpus of fig. 2c. Magnified 3 diameters. 
5 Cast of rachis of fins of fig. 2 to show nature of its embossed markings. Magnified 
3 diameters. 
. Foot of hindermost left walking limb of fig. 2a to show spines and hooks. Magnified 
3 diameters. 
. A tail-joint of fig. 2c, showing the character of its anterior articulation and the fluting 
on its ventral surface. Magnified 3 diameters. 
Another tail-joint of fig. 2c, showing posterior articular surface “end on.” Magnified 
3 diameters. 
Portion of fig. 2a to show two of the stigmata or breathing slits at right posterior angles 
of the third and fourth ventral plates of the abdomen; as also the longitudinally 
folded skin connecting the dorsal and ventral plates. Magnified about 3 diameters. 
. Stigma at corresponding angle of the third abdominal plate of a recent scorpion, for 
comparison with fig. 27. Magnified nearly 3 diameters. 
L. euglyptus, N.S. Natural size of specimen, obtained from near Langholm. 
. To show more clearly the portions exhibited by fig. 3 for comparison with fig, 1. 
. Portion of fig. 3, magnified 3 diameters, showing the operculum raised so as to 
expose the genital orifice; also the combs in place, and the nature of their orna- 
mentation. The dotted lines show the probable extension of combs, 
. Portion of comb of fig. 3, magnified, 10 diameters, to show nature of fringe of leaflets 
near distal end. 
. Portion of comb of fig. 3, magnified about 20 diameters, showing that the fringe is 
made up of a double row of leaflets nearer its apical end. ; 
Tarsus and hand of a very large scorpion from Lennel Braes. Natural size, 
Tarsus of scorpion from Cramond, Natural size. 
Leg of scorpion from Coldstream. Natural size. 
* This scorpion agrees very closely with the description of GErRvais of his Scorpio Cumming in 
Watckenaer’s “ Insectes Aptéres,” and would fall under the genus Ischnurus of Kocu. 
