Description: The tubular and mucilaginous unbranched thallus is strictly epiphytic on Analipus japonicus. This golden brown thallus of Saundersella simplex frequently dominates its host, growing up to 18 cm (7 in) long. Habitat: This summer annual is found on its host in the mid to low intertidal of semi-protected to exposed habitats. Similar taxa: Melanosiphon, Scytosiphon.