72 GLAUCUS; OR, 
plastered it up with sand and mud (Heaven alone 
knows how), just-as a wry-neck plasters up a hole 
in an apple-tree when she intends to build therein, 
and has left only a round hole, out of which he 
can poke his proboscis. A curious thing is this 
proboscis, when seen through the magnifier. You 
perceive a ring of tentacles round the mouth, for 
picking up I know not what ; and you will perceive, 
too, if you watch it, that when he draws it in, he 
turns mouth, tentacles and all, inwards, and so 
down into his stomach, just as if you were to turn 
the finger of a glove inward from the tip till it 
passed into the hand; and so performs, every time 
he eats, the clown’s as yet ideal feat, of jumping 
down his own throat.’ 
So much have we seen on one little shell. But 
there is more to see close to it. Those yellow 
plants which I likened to squirrels’ tails and lob- 
sters’ horns, and what not, are zoophytes of different 
kinds. Here is Sertularia argentea (true squirrel’s 
1 Plate IX. Fig. 8, represents both parasites on the dead 
Turritella. 
