GEOLOGY OF FOLKESTONE — THE GAULT, 325 



graceful Scalaria Clementina, or a handsome Scalaria Vwpiniana 

 may be exhumed in the same lucky manner. Of the genus Scalaria 

 four or five other species are recorded as occuring in continental 

 localities ; of these I believe I have found fragments of the following 



Lign. 35.~Scalaria Clementina. Lign. 36.— Cast of Scalaria Dupiniana, 



with restored outline of mouth. 



at Folkestone — 8. gauUina, 8. Bauliniana, 8. gastina, but I can not 

 speak with certainty. 



These forms should therefore be looked for by collectors, as should 

 also a little Rissoa, a genus familiar most likely to some of our 

 readers, from the immense abundance of a living species in the pools 

 of sea-side marshes. 



