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A Living Bay

The Underwater World of Monterey Bay

Lovell Langstroth and Libby Langstroth


Polyorchis penicillatus
Phylum Cnidaria/Class Hydrozoa
Hydromedusa bell about 30 mm tall. Monterey Bay Aquarium.

During the late 1980s large numbers of these beautiful, pulsating little hydromedusae were found in the eelgrass beds near Monterey’s Wharf II. What a thrilling sight!

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