AUTHOR=Lavesque Nicolas , Nogueira João M. M. , Daffe Guillemine , Hutchings Pat 

TITLE=Five new species of Terebellides (Annelida, Polychaeta, Trichobranchidae) from Papua New Guinea (Bismarck and Solomon seas)

JOURNAL=Frontiers in Ecology and Evolution

VOLUME=Volume 12 - 2024

YEAR=2024

URL=https://www.frontiersin.org/journals/ecology-and-evolution/articles/10.3389/fevo.2024.1349362

DOI=10.3389/fevo.2024.1349362

ISSN=2296-701X

ABSTRACT=Five new species of Terebellides Sars, 1835 are described from coastal and deep waters of Papua New Guinea, using both morphology and molecular tools (for four species). Terebellides elenae n. sp. is characterised by the absence of both a glandular lateral region on TC3 and papillae on margins of the branchial lamellae, and by the presence of partially fused branchial lobes with conspicuous 5 th lobe and dorsal rounded projections until TC6. Terebellides fauchaldi n. sp. has a very large glandular lateral region on the third thoracic chaetiger (TC3), a 5 th branchial lobe and partially fused branchial lobes, and conspicuous dorsal rounded projections on TC2-6. Terebellides madeep n. sp. is characterised by a thin glandular region on TC3 and by four free branchial lobes. Terebellides oculata n. sp. is one of only two species in the world to have eyespots. Finally, T. papillosa n. sp. has geniculate chaetae on TC6 and TC7 and bears a large number of papillae. A Majority-rule consensus tree using 16S gene and an identification key for all Terebellides species described from the Central-Indo-Pacific region are provided.