Note
A one-year survey of amphipods and tanaidaceans associated with monospecific sea grass meadows and a bare sand substratum, under similar physical-chemical conditions, showed that the magnozosterid Thalassia testudinum supported higher numbers of peracarids per square meter than the parvozosterid Halodule wrightii and the bare sand substratum as predicted by Kikuchi and Peres (1977). However, when examined in terms of numbers of individuals per unit sea grass biomass or surface area, Thalassia and Halodule supported nearly equal numbers of epifauna. Syringodiumfiliformea, syringodiid consistently supported highest surface area-standardized abundances of epifauna.