Sipunculidae

Sipunculidae is a family of peanut worms.

Phascolopsis

 * Phascolopsis gouldii (De Pourtalés, 1851)

Siphonomecus

 * Siphonomecus multicinctus Fisher 1947

Siphonosoma

 * Siphonosoma arcassonense (Cuenot, 1902)
 * Siphonosoma australe (Keferstein, 1865)
 * Siphonosoma boholense (Selenka, de Man & Bülow, 1883)
 * Siphonosoma cumanense (Keferstein, 1867)
 * Siphonosoma dayi Stephen 1942
 * Siphonosoma funafuti (Shipley, 1898)
 * Siphonosoma ingens (Fisher, 1952)
 * Siphonosoma mourense Satô, 1930
 * Siphonosoma rotumanum (Shipley, 1898)
 * Siphonosoma vastum (Selenka & Bülow, 1883)

Sipunculus

 * Sipunculus indicus Peters, 1850
 * Sipunculus lomonossovi Murina 1968
 * Sipunculus longipapillosus Murina 1968
 * Sipunculus marcusi Ditadi 1976
 * Sipunculus mundanus Selenka and Bulow, 1883
 * Sipunculus norvegicus Danielssen, 1869
 * Sipunculus nudus Linnaeus, 1766
 * Sipunculus phalloides (Pallas, 1774)
 * Sipunculus polymyotus Fisher 1947
 * Sipunculus robustus Keferstein 1865

Xenosiphon

 * Xenosiphon absconditus Saiz 1984
 * Xenosiphon branchiatus (Fischer, 1895)