Note 2265 — BOOK IX. THE NATURAL HISTORY OF FISHES.

The Lucrine Lake originally communicated with the sea, but was afterwards separated from the Bay of Cumæ by a dyke eight stadia in length. In the time of Augustus, however, Agrippa opened a communication between the Lake and the Bay, for the purpose of forming the Julian harbour. If the circumstance here mentioned by Pliny happened before this period, “invectus” must mean “carried by human agency;” but if after, it is possible that the fish may have been carried into the lake by the tide. For an account of the lake, see B. iii. c. 9.