Nemalion

Nemalion is a genus of red algae that contains approximately ten species, including N. helminthoides. Its members are known by a number of common names. It is the source of the subclass name "Nemaliophycidae".

Species
As of 2017, the species accepted taxonomically are:
 * Nemalion amoenum
 * Nemalion attenuatum
 * Nemalion cari-cariense
 * Nemalion helminthoides
 * Nemalion longicolle
 * Nemalion lubricum (type species)
 * Nemalion multifidum
 * Nemalion multifidum subsp. monoicum
 * Nemalion perpusillum
 * Nemalion vermiculare

Description
Simple multiaxial frond, with a soft and gelatinous core.

Habitat
Marine, mainly littoral.