Lathrobium interglaciale. 

 " antiquatum. 



" debilitatum. 



exesum. 

 inhibitum. 

 frustum. 

 Oxyporus stiriacus. 

 Bledius glaciatus. 

 Geodromicus stiricidii. 

 Acidota crenata, Fabr. (var. nigra.). 

 Arpedium stillicidii. 

 Olophrum celatum. 

 arcanum, 

 dejectum. 

 Chrysomelidje (i gen. 2 sp.). 

 Donacia stiria. 



" pompatica. 

 Curculionidae (4 gen. 6 sp.). 

 Eryc'us consumptus. 

 Anthonomus eversus. 

 fossilis. 

 lapsus. 

 Orchestes avus. 

 Centrinus disjunctus. 

 Scolytidse (1 sp.). 



Phloeosinus squalidens. 



Of these all but two are extinct, as stated by Dr. 

 Scudder. 



Mr. A. J. Grout has determined the following mosses 

 from the same beds : — Hygrohypnum palustre ( ?), Drepano- 

 cladus vernicosus (Lindb), and Hylocomium sp. 



The Scarboro interglacial sands are less extensive than 

 the clays just described, since they are the uppermost beds 

 and suffered far more from superficial destruction by rain 

 action and river erosion in the later part of the interglacial 

 interval. 



Where best developed the sands have a thickness of 55 

 or 60 feet, the lower four or five feet having clayey layers 

 showing a transition to the peaty clay. The sand is gener- 

 ally coarse, but free from pebbles, and some layers are cross- 

 bedded, showing that the deposit was made in shallow water. 



