Note 3066 — BOOK IV. AN ACCOUNT OF COUNTRIES, NATIONS, SEAS, TOWNS, HAVENS, MOUNTAINS, RIVERS, DISTANCES, AND PEOPLES WHO NOW EXIST OR FORMERLY EXISTED.
John Bostock translation
Ansart says they are about 200 in number, consisting of Belle Isle, Groaix, Houat, Hoedic, and others. Also probably Morbihan.