A new species of Myrianida (Syllidae, Polychaeta) from Belize

Abstract

We describe Myrianida gidholmi sp. n. from shallow waters in Belize. It is characterized by a unique colour pattern consisting of red transverse and longitudinal bands. We determine its phylogenetic position within Myrianida using a combined approach with morphological and molecular data. The new species is compared to relevant Myrianida taxa and important features for morphological identification are listed in a table. The new combinations Myrianida tyrrhenica (Cognetti, 1953) and M. cognetti (Çinar & Gambi, 2005) are introduced, and Autolytus antondohrni Çinar & Gambi, 2005, is synonymized with M. tyrrhenica. We also provide a checklist of all taxa belonging to Myrianida. Copyright © 2007. Magnolia Press.