280 REPORT—1904. 
much, a variation probably due to mechanical causes and not to any 
difference in the form of the foot. A form rather longer than the type 
is seen on slabs from Coven, South Staffordshire, in the Victoria Institute, 
Worcester, and in the Liverpool Museum. 
Chelonoid Forms. F 1-2. 
The distinguishing features of the prints included in this group are 
the presence of a distinct palmar surface covering a large portion of the 
area of the print and of short strongly clawed digits. 
Fil. j. F 1. The most common and also the simplest form 
nan that has been seen consists of an oval gently rounded 
n 5 A 
i surface measuring about one inch by three-quarters 
of an inch, with marks of four or five claws a little 
in front of the longer margin. This is fairly common 
both at Runcorn and Storeton ; the best example 
is in a slab from Storeton, in the Bootle Museum, 
No. 9, which is nearly covered with them. The 
original label is still attached, ‘ Footmarks from 
Storeton of Lizards and Tortoises, Natural History Society.’ It is 
identical with Sawrichnites perlatus | (Fritsch), and Mr. Morton includes 
it in his Chelone ? subrotundus. 
F 2. This is a much less simple form, and presents some difficulties of 
interpretation. It consists of an irregular oblong about the same size 
as the oval of F 1, divided into regions by slight 
F 2. 41,.—Manus? depressions : from the front of this project four 
short cylindrical parallel digits, and a fifth’ in- 
distinctly marked is often present. Each digit 
is armed with a strong, sharp claw, having a 
. slight protuberance at its base. The claws 
are almost sickle-shaped, and appear to have 
pointed obliquely upwards, but there is a diffi- 
culty in making out their normal position. 
The best example seen is from Storeton 
(pl. v.). It measures 30 mm. wide by 33 mm. 
from the posterior margin of the print to the 
outer boundary of the claws. The length of the 
IT digit to the root of the claws is 5 mm., and the claw itself about 7 mm. 
Although the slab of stone is of considerable size, it unfortunately con- 
tains but this one recognisable print of this form. From other speci- 
mens it would seem to make a track 8 inches wide with length of 
stride 9 inches, the right and left prints alternating. Further observa- 
tions are required to confirm this. There is a large slab showing these 
prints in the Liverpool Museum. Some prints have recently been found 
at Runcorn of approximately the same size, but with the digits fully 1 cm. 
long, not including the claw, or twice the length of the type. The same 
elongation of the digit is also seen on a slab in Liverpool University 
Museum, whilst in another print close by, apparently made by the same 
individual, the digits are of the typical proportions. 
The general appearance of the prints suggests a burrowing habit and 
a resemblance to the foot of the common mole. It was described and 
figured by the writer in 1897,” together with a note from Professor Seeley 
! Letter to the writer, 
2 Observations regarding a Footprint from the Keuper Sandstone at Storeton, 
