186 
Kapellebacken. In a small quarry, where the material has 
been worked for agricultural purposes, the following shells 
were found under conditions which imply that they lived 
where they now lie. They occur in horizontal patches, 
shewing on the sections as level, and remarkably limited 
strata. There is, at a level many feet below the top of the 
older deposit, a curious patch of much more modern raised 
beach with Littorina littorea and Cardium edule. 
This bed also is horizontal and undisturbed. 
My a truncata : The two , valves together, upright in 
sandy shingle, and filled Avith the same. 
Mytilus Edulis : In beds, the valves of various sizes 
lying confused and packed. In this species the ligament 
and hinge are weak and the valves speedily detach them- 
selves. One pair was found in the mouth of a baccinum, 
which could scarcely have rolled over after its lodger had 
died without losing his shell. 
Modiola Modiolus : In a bed of fine sand shells of this 
species occurred in a remarkably perfect condition, the 
valves closed, posterior edge uppermost, the hinge and back 
at the top ; large shells and smaller (all of a more fragile 
variety than is commonly dredged in British seas.) In 
digging back into this layer shell after shell appeared; 
while fresh, as perfect as if alive,” but soon to warp and 
crack in drying. 
[Query : Does this Modiola ever live burrowing free in 
fine sand ?] 
Fecten Islandicus : In beds, large and small, the valves 
together, horizontally, with the flatter valve uppermost. 
The colour of this shell is often preserved with extraordinary 
freshness. 
Buccinnum undatum : and B. Greenlandicum : Both 
species occasionally occurred, older and younger shells 
together, grouped in horizontal strata, though, naturally, not 
so massed as the less locomotive bivalves, and besides, 
generally diffused through the whole deposit. 
