During ecological surveys in Port Phillip Bay Victoria, Australia, colonies of minute leptothecate hydroids were found living in tubes in a muddy seabed, the tubes probably being those of polychaete worms. Three species are recorded: two are new species and the third, provisionally assigned to Rathkea octopunctata, is a new record for Australia.

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Zoologische Verhandelingen

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Naturalis journals & series

Watson, J. E. (1998). Troglodytes of a muddy bottom: the hydroid fauna of holes in the seabed. Zoologische Verhandelingen, 323(20), 247–256.