‘Fairie Queen’, the, [486].

[Fangs]; Cuvier’s distinction, [47], [353];

of sea-ss., [241], [266];

early experiments with, [274], [281];

mobility of early, described, [278], [283], [369], et seq.;

a means of defence, [311], [516];

functional pair, [345], [364], et seq.;

construction of, [356];

the ‘slit’, involution, [356], [358], [372];

illus. of, [356];