Phylum - Sipuncula

Common name: Peanut Worms

Name derivation: “little tube”

  • Class: Phascolosomatidea
  • Class: Sipunculidea

Number of Orders: 4

Number of Families: 6

Number of Genus: 17

Number of known Species: 205

Earliest Fossil Record: Early Cambrian 520 mya

Habitat: Marine

Size Range: 2 mm to 40 cm

Notes: Treated by some as a class of Annelids. Based on Catalogue of Life as of July 2024

Priapulida  Annelida >