Although some clades of ribbon worms (phylum Nemertea) are consistently recovered with
high support in molecular phylogenies, the placement and inter-relationships of some taxa …

Ribbon worms are active predators that use an eversible proboscis to inject venom into their
prey and defend themselves with toxic epidermal secretions. Previous work on nemertean …

The nemertean order Monostilifera consists of 594 species in 127 genera and is distributed
worldwide. Within the Monostilifera, two suborders have been recognized, Cratenemertea …

The underexplored intertidal ecosystems of Antarctica are facing rapid changes in important
environmental factors. Associated with temperature increase, reduction in coastal ice will …

Deception Island is an active volcano located at the southern end of the South Shetland
Archipelago, in the Antarctic Ocean. After the last eruption in 1970, benthic recolonization …

Background The apical organ is the most prominent neural structure in spiralian larvae.
Although it has been thoroughly investigated in larvae of the class Pilidiophora in phylum …

Developments in nemertean research over the last 35+ years are reviewed from a
systematist's perspective. Nemertean systematics and classification, until fairly recently, was …

We provide a histology-free description of the eumonostiliferous hoplonemertean
Tetrastemma cupido sp. nov. based on specimens collected subtidally at a depth of 100 m in …

Nemerteans, or ribbon worms, are mostly marine, benthic invertebrates that constitute the
phylum Nemertea, which is closely related to Phoronida, Brachiopoda, Mollusca, and …

The presence of peritrich ciliate epibionts Rhabdostyla sp. and Cothurnia sp. on Syllidae
polychaetes is reported here for the first time, including the description of three new species …