Nemertea analyses by molecular phylogeny are confident that members of Lophotrochozoa are more closely related to each other than of non-members, the relationships between members are mostly unclear. Most protostome phyla outside the Lophotrochozoa are members of Ecdysozoa ("animals that molt"), which include Arthropoda, Nematoda and Priapulida. Most other bilaterian phyla are in the Deuterostomia, which include Echinodermata and Chordata. The Acoelomorpha, which are neither protostomes nor deuterostomes, are regarded as basal bilaterians. Nemertea Nemertea is a phylum of invertebrate animals also known as "ribbon worms" or "proboscis worms". Alternative names for the phylum have included Nemertini, Nemertinea and Rhynchocoela. Although
Bacterial phyla Group A. Two species of the candidate phylum OP10, which is now called Armatimonadetes, where recently cultured: "Armatimonas rosea" isolated from the rhizoplane of a reed in a lake in Japan and "Chthonomonas calidirosea" from an isolate from geothermally heated soil at Hell's Gate, Tikitere, New Zealand. One species, "Caldisericum exile", of the candidate phylum OP5 was cultured, leading to it being named Caldiserica. The candidate phylum VadinBE97 is now known as Lentisphaerae after "Lentisphaera araneosa" and "Victivallis vadensis" were cultured. More recently several candidate phyla have been given provisional names despite the fact that they have no cultured representatives: