Note
Within each of three adjacent monospecific beds of seagrasses (Halodule wrightii Aschersen, Syringodium filiforme Kutzing, and Thalassia testudinum Banks ex Konig) in the Indian River lagoon, Florida, the motile epifauna of seagrass and drift algae (Gracilaria sp.) were quantitatively sampled. In spite of sometimes large and significant differences in abundance of many epifaunal species, the lists of species on all substrata were similar, with an average of 75% of 47 species in common, mostly gastropods and peracarid crustaceans.