A Monograph on the Sub-class Cirripedia (Volume 1 of 2)

part coated by the bell of the oesophagus. I have sometimes thought that

the bag was formed so strong, for the sake of thus carrying out the excrement entire, so as not to befoul the sack. I believe Lepas can throw up food by its oesophagus; at least, I found in one case, many _half-digested_ small Crustaceans in the sack, and others of the same kind in the stomach.

_Circulato...