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BATHYMETRICAL SURVEY OF 
includes animals and plants of a great many different classes, but the flora 
and fauna of this region resemble those of any highland lochs which we 
have studied, and there is little calling for remark. A new species of 
rotifer, PJiilodina hamata, Murray, a parasite on Gammariis (the fresh-water 
shrimp), was found here. 
“ The mud of the bottom proved to resemble that of Loch Ness, and other 
highland lochs in the comparative paucity of life. A few worms, Crustacea, 
and molluscs are the commonest inhabitants of this region. The depth 
of St. Mary’s being moderate, some species were found which are absent 
from the deeper muds of Loch Ness. Water-mites (Hydrachnida) of 
several species were found, and a single small stickleback.” 
