Pycnotheca mirabilis (Allman, 1883)

Pycnotheca mirabilis (Allman 1883). A, stem internodes. B, hydrocladial internodes showing hydrothecae and shield-like median nematothecae. C, hydrotheca, anterior view. D, conical mamelon in axil ofapophysis. E, gonotheca, Bar scale: A, 500 µm; B, C, 300 µm; E, 100 µm; D, 1 mm.

From Watson, J.E. (2005). Hydroids of the Archipelago of the Recherche and Esperance, Western Australia: annotated list, redescriptions of species and descriptions of new species. In: Wells FE, Walker DI, Kendrick GA (eds) The Marine Flora and Fauna of Esperance, Western Australia. Western Australian Museum, Perth.

Photographer: Watson, Jeanette. Publisher: Watson, Jeanette.