KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND. 21. N:0 9. 11 



humerus: it appears to be sub-trapezoidal or sub-triangular, with the longest, somewhat 

 rounded side, directed outwards or backwards. 



The hand of the right palpus {m) is rather short and strong; but, judging from 

 what remains of the left hand, it may have been originally both longer and 

 broader than it is now. Its length, inclusive of the fingers, almost equals that of the 

 three preceding joints taken together; its greatest breadth is not quite double that of 

 these joints. It rather suddenly narrows into the two tolerably strong, blunt, and 

 slightly incurved fingers, being very strongly rounded on the inner side, behind the 

 immovable finger; the outer side of the hand, inclusive of the movable finger, is rather 

 slightly and evenly rounded or incurved. The immovahle {inner) finger {d) would seem 

 to be somewhat longer than the hand itself, and it is broader and shorter than the mov- 

 able (outer) finger. The fingers are closely clutched, and their line of contact is quite 

 smooth and even, without teeth or granules; probably the hand is turned a little to 

 the right, so that the edges of the fingers with their armature are concealed from 

 sight. Along the edge of the immovable finger, towards its base, there are traces of 

 a row of rather coarse depressed granules; similar granules are also scattered on the 

 anterior part of the hand itself; and on the basal part of the (mutilated) left hand 

 are seen probable traces of a few longitudinal ridges. 



The walking limbs or legs (fig. 1, Pj — PJ are altogether diflferent in form from 

 those of modern scorpions, though composed, as in these latter, of seven joints, The 

 anterior or rather supero-anterior side of the legs is exposed to view: it exhibits on 

 all the joints, except the two last, evident traces of having been finely granulated. 

 The legs are short and dumpy, tapering at first (to the base of the fourth joint) slightly, 

 then rather strongly towards the tip, ivhich is pointed, and destitute of the tivo movable 

 claws with which other scorpions are j)rovided. It is however possible that the very tip 

 of the last joint is formed of a separate, exceedingly small, conical point (as in our 

 fig. 7, II); but the presence of this little »claw» is quite problematical, as it cannot be 

 clearly seen in the only leg (the left of the second pair) in which the tip is uninjured. 



The first pair of legs is rather shorter and not inconsiderably more slender 

 than the second pair, and this in turn is somewhat shorter and more slender than 

 the third pair; whilst the fourth pair is slightly stronger and even somewhat longer 

 than the third pair. The joints, in the different pairs of legs, are very nearly of the 

 same form. They were probably, with the exception of the coxa and the last tarsal 

 joint, cylindrical or nearly so, whereas, in recent scorpions, the thighs and the tibiae 

 are compressed and, moreover, much longer than in Palseophonus. The first tarsal 

 joint in Palajophonus is much shorter than the two following ones, whereas, in modern 

 scorpions, the third joint is shorter than the two preceding. The hindmost coxge are 

 probably much shorter in Palseophonus than in recent scorpions. 



Of the basal joints or coxce nothing is, in our specimen, with certainty to be 

 seen, except the broad apex of the left coxa of the third pair (fig. 1, c), which shows 

 that the hinder coxse are directed obliquely inwards and forwards as in other scorpi- 

 ons. The second joint or trochanter (tr) is short and very thick: its transverse diame- 

 ter nearly equals, in the third pair of legs, one-fourth of the breadth of the cephalo- 



