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

New records and five new species of sipunculans (Sipuncula) from the central and northwestern Mexican Pacific. European Journal of Taxonomy. 925: 179-219., available online at …

Sipuncula or Sipunculida is a phylum of bilaterally symmetrical, unsegmented marine invertebrates, characterized by a worm-like body divided into a trunk and retractable introvert, …

The Sipuncula, also known as the Sipunculida, or peanut worms, are a small phylum of marine worms, [1] or they may be a class in the Annelida. [2] The phylum has 144–320 species …

Sipuncula display a unique combination of morphologi-cal, anatomical, and developmental traits. They are non-segmented coelomates with a simple, sac-like trunk and a retractable introvert …

The Sipuncula or Sipunculida (common names sipunculid worms or peanut worms) is a group containing 144–320 species (estimates vary) of bilaterally symmetrical, unsegmented marine …

Sipunculus 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 consists of a sac …

Aspidosiphon brocki is a relatively small tropical species that inhabits borings in coral rock and rubble. It ranges in length from 3 to 10 mm when the anterior extensible introvert is retracted. …

Sipunculus is a genus of worms belonging to the family Sipunculidae. [1] Sipunculus is a variant spelling of the Latin siphunculus ("little tube"), [2] a diminutive of sipho from Greek σίφων …

Mar 1, 2020 · The Sipuncula are a small phylum of small to medium sized marine worms (2 mm to 500 mm). Over 90% are longer than 5 mm. They are unsegmented worms that live in the …