Manchester Memoirs, Vol. liii. ( 1 909), No. */i*-i. 9 



Jardine's plate V. The pes shows well the characteristic 

 features of the group — the inwardly-directed digits, 

 digit IV. being the longest and furthest advanced. The 

 impression of the first digit is very slight. The associated 

 manus figured is unusual in form — ordinarily, it is 

 elongated like the pes. Jardine states that it shows four 

 toes, and evidently regards the longest one as digit III, 

 If this is really the case, it is difficult to reconcile this 

 manus with the usual form. My own conviction is, that 

 what looks like the outermost digit, is an impression due 

 to some pad on the " sole," and that three digits only are 

 really shown (III., IV., and V.), though I. and II. were 

 probably also present, and directed inwards as in the foot. 

 This interpretation is supported by the other manus on 

 the same slab which certainly only shows three digits. 



The track of this form was narrow, for a Permian one. 

 Jardine states that it sometimes reached a considerably 

 greater size. This type may be termed Hp. i. 



Heypetichniis loxodactyliis, Dudgeon, is the only new 

 print hitherto described from Dumfries since Jardine's 

 account, as far as I have been able to discover (Dudgeon, 

 '78). Fig. 23, taken from Dudgeon's plate, represents a 

 cast of the right pes (/>., a left pes, if regarded as an 

 impression). Only the impression of the " ball " of the 

 fifth digit appears. Were the claw shown, the resemblance 

 to Hp. I would be more marked. The manus was smaller, 

 with a length of 2'3 inches against 3'5, and was placed 

 2 inches in front of the pes. The stride was 10 inches. 

 The print was obtained from Locherbriggs quarry. It 

 will constitute the type Hp. 2. 



Other forms. — Fig. 19, P/^/^ ///., shows a print from 

 an unnamed track in the Edinburgh collection, which 

 appears to be completely identical with the form x^ from 



