A new species of the sea pen genus Scytalium Herklots, 1858, is proposed based on the morphological and molecular study of a colony collected during the Océano Profundo 2018 cruise to the Caribbean Sea (NW Atlantic). The new species, Scytalium herklotsi

The order Pennatulacea, commonly known as sea pens, are colony-forming benthos belonging within subclass Octocorallia (Anthozoa, Cnidaria). Sea pens are found worldwide from shallow to deep waters, and they are important components in sandy and muddy

Sea pens are a highly specialized and morphologically distinct group of octocorallians, but many taxa were poorly described and their phylogenetic relationships are still poorly known. We describe two species of sea pens collected from the tropical Western

A new genus and species of sea pen or virgulariid pennatulacean from the Gulf of Guinea in the tropical eastern Atlantic is described, and a key to the genera of the Virgulariidae is included. The new genus and species described here adds to the previously

The description in 1891 of the sea pen genus Gyrophyllum Studer, 1891 and also the type species G. hirondellei Studer, 1891 was based on a single colony collected in the Azores Archipelago. During the 19th and 20th centuries, the family placement of this