The Sipuncula or Sipunculida (common names sipunculid worms or peanut worms) is a class containing about 162 species of unsegmented marine annelid worms...

a sub-group of polychaetes. In addition, the Pogonophora, Echiura and Sipuncula, previously regarded as separate phyla, are now regarded as sub-groups...

nudus is a cosmopolitan species of unsegmented marine worm of the class Sipuncula, also known as peanut worms. As in all peanut worms, the body of S. nudus...

Acoela Nemertodermatida Clitellata (earthworms) Polychaeta (bristle worms) Sipuncula (peanut worms) Arachnida (spiders, scorpions, and kin) Xiphosura (horseshoe...

Rafinesque used the feminine form Sipuncula to distinguish the family including S. nudus; this was later elevated to the Sipuncula class, the family being renamed...

List of annelid families describes the taxa relationships in the phylum Annelida, which contains more than 17,000 extant species including ragworms, earthworms...

plerocercoid Annelida nectochaete, polytroch Nematoda Dauer larva, microfilaria Sipuncula pelagosphera larva Ectoprocta cyphonautes, vesiculariform larvae Nematomorpha...

Antillesoma is a genus of peanut worms (Phylum Sipuncula). The genus belongs to the family Phascolosomatidae. Antillesoma was described in 1973 by Stephen...

Halanych, Kenneth M. (2007-01-01). "Annelid phylogeny and the status of Sipuncula and Echiura". BMC Evolutionary Biology. 7 (1): 57. Bibcode:2007BMCEE....

pseudocoelom. Other invertebrates include the Nemertea, or ribbon worms, and the Sipuncula. Another phylum is Platyhelminthes, the flatworms. These were originally...