THE GIANT SEAHORSE RETURNS
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recent captures that were known to us were of numerous specimens in Black Warrior Lagoon, on the west coast of Baja California-roughly 300 miles below San Diego-along the shore of SebastiAn Vizcaino Bay, where the waters are warmer than they are on either side. Since the merely warm temperate waters of southern California obviously lie on the very fringe of its range, it is surprising to recall that the species was discovered in California. Five specimens were taken in 1857 at San Diego, presumably in the bay, by Andrew Cassidy, who operated the initial tidegauge station, which was established by officers of the Pacific Railroad Survey. This operation, which was conducted to determine the most practicable route for a railroad to the Pacific Coast, included the first organized and extensive exploration of the fauna of the Pacific Coast. Other, tropical species were collected by this Survey at San Diego in the 1850s—a circumstance that led the senior author to determine that about the middle of