KENNAED & AVOODWARD : ON POST-PLIOCENE MOLLUSCA. 2G3 



"Sands, St. Acheul." 



Jaminia muscorum (Linn.). Valvata piscinalis (MiilL). 



Succinea ohlonga, Drap. Pisidium amnicum (Linn.). 



"Marly sands, St. Aclieul." 



Hygromia hispida (Linn.). Flanorbis spirorbis (Linn.). 



Succinea ohlonga (Drap.). Fl. arcticus, MoUer. 



S. putris (Linn.). 



These five series are extremely interesting, since they are without 

 doubt of the same age as the deposit at Swanscomb, Kent, which has 

 yielded so abundant a fauna. ^ Perhaps the most interesting form is 

 Flanorbis arcticus. This form, which is a near ally of F. glaher, Jeff., 

 and P. parvus, Say, is known in a living state from West Greenland, 

 Fort Chimo, Ungava, and Labrador in the New World, whilst as 

 F. sibiricus, Dunk., it has been recorded from Siberia. It occurs not 

 uncommonly in the Pleistocene of Crayford, whilst in Germany, as 

 F. Rossmaesslerii, Aues, or F. sibiricus, Dunk., it has been recorded 

 from the Pleistocene of Osterode Eckbolsheim near Strassburg, 

 Hangenbeiten near Strassburg, Uichteritz near Weissenfels, and 

 Halberstadt. 



A. S. Kennard & B. B. "Woodward, "The Post- Pliocene non-marine Mollusca of 

 the South of England" : Proc. Geol. Assoc, vol. svii (1901), pp. 238, 239, 

 and table. 



