It is replaced by a roasted filet, a turbot, or a matelote.
"The Physiology of Taste"
Brillat Savarin
These, however, should not be added to the matelote till it is dished.
"The Book of Household Management"
Mrs. Isabella Beeton
A matelote may be made of eels alone, but it is better with eels and one, two, or three other kinds of fish.
"Hand-Book of Practical Cookery for Ladies and Professional Cooks"
Pierre Blot