Note 160 — BOOK XXXII.1 REMEDIES DERIVED FROM AQUATIC ANIMALS.
John Bostock translation
See B. ix. c. 74. It is at the spawning season that this milky liquid is found in the oyster; a period at which the meat of the fish is considered unwholesome as food. We have a saying that the oyster should never be eaten in the months without an r; that the same, too, was the opinion in the middle ages is proved by the Leonine line:
“Mensibus erratis vos ostrea manducatis.”
“In the r’d months you may your oysters eat.”