GEOLOGICAL SOCIETY OF PENNSYLVANIA. 235 



ated with articles of the Encrinitus moniliformis, in the 

 conchyliferous limestone {Muschelkalk) of Friedrick- 

 shall, at Marbach, near Villingen, in Wurtemberg. 

 Fourth, A. areniola, Gold/., in the superior oolitic 

 sandstone strata of the Jura limestone formation of Porta 

 Westphalica, and on the Jacobsberg, the right bank of 

 the Weser, near Minden. Fifth, A. quinqueloha. 

 Gold/., from the chalk formation of Northfleet, England, 

 Maestricht, Netherlands, and Rinkerode, near Munster. 

 Sixth, A. lurensis, Munster, in the oolitic argilite, be- 

 tween the Jura limestone and Lias sandstone, in Bairuth, 

 also near Nattheim, in Wurtemberg and Stuttgarden. 

 Seventh,^, tabulata, Goldf., in the superior argillace- 

 ous strataof the Jura limestone of Baruth, near Streitberg. 

 Eighth, A. scutata^ Gold/., same locality. Ninth, A. 

 stellifera, Gold/., same locality. Tenth, A. prisca, 

 Goldf., from the Lias sandstone of Wasseralfingen, in 

 Wurtemberg. From the above list, it appears that they 

 have been found from the conchyliferous limestone, as 

 the A. obtusa, Goldf., to the chalk formation, as A. 

 quinqueloha, Goldf. So that our Jisterias is separated 

 from them by the varigated sandstone, the zechstein, 

 copperslate, old red sandstone and the coal. 



I found five other species of free Asterites : one of 

 them occurring in a lower stratum than that in which the 

 Jl. antiqua is imbedded ; and the four others in higher 

 situations; all nevertheless, below the coal; but which, for 

 want of having any body to draw them, must for the 

 present remain undescribed. 



