Hydractinia minuta (hydromedusa)
Collected: June 2006, <1 km off of Assateague Island, VA. along the bottom at a depth of 10 m using an Epibenthic sled fitted with a plankton net (363 micrometer mesh). Hydractinia is an unusual catch in this location but was one of the more common medusae caught in this sample.
Notes: This is one of the smallest of the hydromedusae with a bell only about 0.3 mm tall. Two virtually identical forms occur: Hydractinia mimima (BELOW) with 4 tentacles and H. minuta with 8 tentacles.
Some feel that these two forms may represent different stages of the same species.
Aboral view (from the top of the bell). in this view the 8 tentacles are easy to count even in this fuzzy photomicrograph.