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Lobatocerebromorpha A phylum of three species, discovered in 1980 but not described as a phylum until 1991, by G. Haszprunar, R. M. Rieger, and P. Schuchert, who suggest it may be related to the Annelida and Sipunculida (peanut worms). Lobatocerebromorphs have a ciliated body (see CILIUM) with a cuticle, ventral nerve cords, segmentally arranged protonephridia (see NEPHRIDIUM), and a posterior anus. The parenchyma has very little intercellular matrix, but there is no true coelom. The organisms are 1 mm long, worm-like, and hermaphrodite, with no vascular system, but with an unexpectedly large brain.

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