300 REPORTS ON THE STATE OF SCIENCE. 



It is juat possible that the diflfereuce between the two forms in the 

 number of digits leaving impressions may be due to age. 



Jihynchosaurold Form. — D. 6. This was referred to in last Report 

 (1905) as occurring on some slabs from Shrewley 

 in the Warwick Museum, which contains numerous 

 examples. No others have been seen since. 



Pes : Five digits shown ; IV, longest. They de- 

 crease rapidly in length from IV. to I., which is very 

 short. Only a trace of V. has been observed. They 

 are fairly evenly divergent, and often curved inwai-ds 

 (towards I.). In all these respects tliey resemble D 1. 

 Manus and Tes. The form of the digits differs from it. They increase 

 h nat. size. in width gradually towards the extremities, whicli are 



bluntly rounded off, and the presence of nails is very 

 uncertain. The leiigth of IV., the longest, is 3'5 cm. There is no palmar 

 surface. 



Manus : Similar to Pes, Init only two-thirds the length. The print 

 of V. has not been noted at present, but the similarity to the Pes leaves 

 little doubt as to its actual presence. The print of the Manus is just in 

 front of that of the Pes, the proximal end of IV. being in contact with 

 II. of Pes. 



All the examples seen are from the Upper Keuper sandstone of 

 Shrewley, Warwickshire. 



A form that comes into neither of the three larger groups has been 

 occasionally found, and was described in ' Proc. Liv. Geol. Soc.,' 1895-G, 

 under letter C 



C. Five digits ; the middle one (HI.) the longest, being one-half the 



total length of print ; II. and IV. rather shorter ; I. and V. very small, 



and V. more divergent than the rest and rather '\]\ their 



r\r> rear. Digits very broad, not less than half their length ; 



yi T L. they do not taper at all, and are rounded at the extremity, 



P r ] without a trace of a nail ; II., III., and TV. lie close 



^ together and parallel ; the palmar surface is about onehfj,}! 



4 nat. sizo. the print. 



Whether tliis i-epresents the Pps ov the Manus is not 

 known, nor liave any but isolated prints been seen, so that the numeration 

 of the digits is not absolutely cerlpiin, 



The longest digit being the r^iiddle one would seem to connect this 

 with the Cheirotheroid form, but there is no other connecting feature. 

 There is a possibility that it may be the Manus of some small Cheiro- 

 theroid form, but it is very doubtful. 



The prints vary considerably in size, one from Storeton measuring 

 28 mm. and one from Euncorn IG mm. in length. 



A form of somewhat similar proportions, and in size about equal to 

 tl)at of the smaller specimen, is in the Grosvenor Museum, Chester. It 

 was obtairfed by Mr. R. Newstead, F.L.S., from a small quarry in the 

 Waterstones (or possibly the Upper Keuper) at Eddisbury. It differs 

 from that just described in the digits tapering rapidly to a sliarp point, 

 f he foot appears to have slipped slightly, and therefore the print is 

 imperfect, which will account for there being no trace of V. digit. 



During the visit of the North Staffordshire Field Club and the Liver- 

 pool Geological Society to Hollingtpn, Staffordshire, in April last, .somg 

 footprints differing from any of tliose previously de.scribed were seen. 



