The phylogenetic status of the aplacophoran mollusk taxon Solenogastres (Neomeniomorpha) is controversially discussed.    From Wordnik.com.  [BioMed Central - Latest articles] Reference

Solenogastres develop via a trochophore-like lecitotrophic larva with a preoral apical cap that at least partly represents an enlarged prototrochal area.    From Wordnik.com.  [BioMed Central - Latest articles] Reference

Some authors propose the clade to represent the most basal branch within Mollusca, while others claim aplacophoran mollusks (Solenogastres and Caudofoveata) to be derived.    From Wordnik.com.  [BioMed Central - Latest articles] Reference