70 Geological Society. 



the presence of coprolitic matter would seem to show that in some 

 instances at least the latter could exist for a time in their under- 

 ground prison. The occurrence of so many skeletons, with a hundred 

 or more specimens of land-snails and myriapods, in a cylinder only 

 15 inches in diameter proves that these creatures were by no means 

 rare in the coal-forests ; and the conditions of the tree with its air- 

 breathing inhabitants implies that the Sigillarian forests were not 

 so low and wet as we are apt to imagine. 



The little land-shell, specimens of which with the mouth entire 

 have now occurred to the author, is named by him Pupa vetusta. 

 Dr. Dawson found entire shells of Physa heterostropha in the stomach 

 of Menobranchus lateralis, and hence he supposes that the Pupa may 

 have been the food of the little reptiles the remains of which are 

 associated with them. 



Two examples of Spirorbis carbonarim also occurred ; these 'may 

 have been drifted into the hollow trunk whilst they were adherent 

 to vegetable fragments. The Myriapod is named Xylobius SigillarifB, 

 and is regarded as being allied to lulus. 



The reptilian bones, scutes, and teeth referable to Dendrerpeton 

 Acadianum bear out the supposition of its Labyrinthodont affinities. 

 Those of the new genus, Hylonomus, established by Dr. Dawson on 

 the other reptilian remains, indicate a type remote from Archegosaurus 

 and Labyrinthodon, but in many respects approaching the Lacertians. 

 The three species determined by the author are named H. Lyellii, 

 H. aciedentatus, and H. Wymani. 



4. " On the Occurrence of Footsteps of Chirotherium in the Upper 

 Keuper of Warwickshire." By the Rev. P. B. Brodie, F.G.S. 



True Chirotherian footsteps do not appear to have been hitherto 

 met with in the Keuper of Warwickshire ; but a specimen of Keuper 

 sandstone showing the casts of a fore and a hind foot of Chirotherium 

 was lately turned up by the plough at Whitley Green near Henley- 

 in-Arden. The breadth of the fore-foot is about 2 inches ; the hind- 

 foot i<* 4| inches across. As the New Red sandstone of Cheshire, so 

 well known for its fine Chirotherian foot- tracts, certainly belongs to 

 the upper part of the New Red series, it may now be further corre- 

 lated with the Upper Keuper of Warwickshire, the latter having 

 yielded true Chirotherian foot-prints. 



MISCELLANEOUS. 



On the Mud-Fish of the Nile (Lepidosiren annectens?). 

 By Dr. J. E. GRAY, F.R.S. &c. 



THE British Museum has just received from M. Parzudaki of 

 Paris two specimens of Lepidosiren from the " embouchure du Nil." 

 They are much larger than any I have seen from West Africa. 

 The largest is much bigger than the specimen which escaped 

 from the small tank into the basin warmed with hot- water pipes 

 in the Crystal Palace. One, in its dry, unstuffed state, is 32, and 



