ICHNITES. 219 



21834. A small slab containing numerous footprints ; from the 

 Keuper sandstone (Upper Trias) of Staunton, two and a 

 half miles from Burton-on-Trent, Staffordshire. 



Purchased, 1848. 



33156. A small slab with similar tracks; from Staunton. 



Purchased, 1858. 



38805. Small slab with similar impressions ; from the Keuper of 

 Coven, near Brewood, South Staffordshire. 



Presented by Rev. H. Houseman, 1862. 



38803. Fragment of rock with similar tracks ; from Coven. 



Presented by Rev. H. Houseman, 1862. 



40154. A very large slab, with numerous impressions of the feet of 

 the same form as the preceding ; from Coven. 



Presented by Rev. H. Houseman, 1862. 



SAURICHNITES, Geinitz \ 

 Pounded upon the evidence of small footprints with short digits 

 which are regarded as those of Labyrinthodonts. While some of 

 these footprints are pentadactylate (S. lacertoides), others (S. sola- 

 mandroides) have but four digits in the manus. 



Saurichnites rittlerianus, Hochstetter 2 . 



Saurichnites perlatus, Fritsch (MS.). 



Hob. Europe (Bohemia). 



R. 1474. Cast of a slab showing two perfect and three imperfect 

 footprints of these two forms. Original from the Lower 

 Permian of Semil, Bohemia. Purchased, 1888. 



MACROPTERNA, Hitchcock 3 . 

 Three or four digits in the manus. and four in the pes ; the manus 

 much smaller than the pes. 



Macropterha divaricans, Hitchcock 4 . 

 Of small size. Length of middle toe 0*7 inch. 

 Hah. North America. 



1 Neuea Jahrb. 1861, p. 65. 2 Verb. geol. Eeichsanstalt, 1868, p. 432. 



8 Mein. Amer. Acad. ser. 2, vol. iii. p. 233 (1848). 4 Loc. cit. 



