Rhopalonematidae

Rhopalonematidae is a family of hydrozoans. The family comprises 15 genera and 36 species.

Genera

 * Aglantha (4 species)
 * Aglaura (monotypic – Aglaura hemistoma)
 * Amphogona (3 species)
 * Arctapodema (4 species)
 * Benthocodon (2 species)
 * Colobonema (3 species)
 * Crossota (5 species)
 * Pantachogon (3 species)
 * Persa (monotypic – Persa incolorata)
 * Ransonia (monotypic – Ransonia krampi)
 * Rhopalonema (2 species)
 * Sminthea (2 species)
 * Tetrorchis (monotypic – Tetrorchis erythrogaster)
 * Vampyrocrossota (monotypic – Vampyrocrossota childressi)
 * Voragonema (4 species)