Three new deep-sea species of Marphysa (Annelida, Eunicida, Eunicidae) from Papua New Guinea (Bismarck and Solomon seas)

Type Article
Date 2022-09
Language English
Author(s) Lavesque NicolasORCID1, Daffe GuillemineORCID2, Glasby ChristopherORCID3, 4, Hourdez StéphaneORCID5, Hutchings PatORCID4, 6
Affiliation(s) 1 : CNRS, Université de Bordeaux, Bordeaux INP, EPOC, UMR 5805, Station Marine d’Arcachon, Arcachon, France
2 : CNRS, Université de Bordeaux, Observatoire Aquitain des Sciences de l’Univers, UMS 2567 POREA, Pessac, France
3 : Museum and Art Gallery Northern Territory, Darwin, Australia
4 : Australian Museum Research Institute, Australian Museum, 1 William Street, Sydney, NSW 2010, Australia
5 : CNRS, Sorbonne Université, Laboratoire d’Ecogéochimie des Environnements Benthiques, LECOB, Banyuls, France
6 : Department of Biological Sciences, Macquarie University, North Ryde NSW 2109, Australia
Source Zookeys (1313-2989) (Pensoft Publishers), 2022-09 , N. 1122 , P. 81-105
DOI 10.3897/zookeys.1122.89990
WOS© Times Cited 4
Keyword(s) Bloodworm, COI, deep sea, Marphysa, morphology, polychaete, sunken vegetation, taxonomy
Abstract

Three new species of Marphysa Quatrefages, 1866, Marphysa bananasp. nov., Marphysa papuaensissp. nov., and Marphysa zanolaesp. nov. are described from deep-sea sunken vegetation off Papua New Guinea, using both morphology and molecular data (for two species). With the presence of compound spinigers only and the branchiae present over many chaetigers, Marphysa bananasp. nov. belongs to the group B2. This species is characterised by the presence of eyes, the presence of branchiae starting from chaetiger 20, and by the presence of three types of pectinate chaetae and bidentate subacicular hooks starting from chaetigers 13–52. With the presence of compound falcigers only and the branchiae restricted to a short anterior region, Marphysa papuaensissp. nov. belongs to the group C1. This species has a bilobed prostomium but no eyes, has branchiae from chaetigers 7 to 14–16 with up to 16 filaments. Marphysa papuaensissp. nov. is also characterised by the presence of bidentate subacicular hooks from chaetiger 20 and by a single type of pectinate chaetae. Finally, Marphysa zanolaesp. nov. belongs to the group C2, with the presence of compound falcigers only and the branchiae present over many chaetigers. This species is characterised by the absence of eyes, by the presence of branchiae with a single long filament starting from chaetiger 31, by unidentate subacicular hooks starting from chaetiger 28 and finally by one type of pectinate chaetae with very long outer teeth.

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