Marphysa Quatrefages, 1866

Lavesque, Nicolas, Zanol, Joana, Daffe, Guillemine, Flaxman, Beth & Hutchings, Pat, 2023, Two new species of Marphysa (Annelida, Eunicidae) from southern Australia., Zootaxa 5277 (1), pp. 113-130 : 117-128

Genus Marphysa Quatrefages, 1866

Type species. Nereis sanguinea Montagu, 1813

Key to Australian species of Marphysa

Based on Zanol et al. (2017), only with species whose presence is confirmed in Australia

1A. Compound chaetae absent… M. mossambica ( Peters, 1854)

1B. Compound chaetae present.............................................................................. 2 2A. Two types of compound chaetae present, falcigers and spinigers......................... M. depressa ( Schmarda, 1861)

2B. One type of compound chaetae present, falcigers or spinigers.................................................. 3

3A. Compound chaetae falcigers............................................................................. 4

3B. Compound chaetae spinigers............................................................................. 7

4A. Prostomium bilobed. Presence of thick, wide anodont pectinate chaetae................... M. davidattenboroughi n. sp.

4B. Prostomium rounded. Absence of thick, wide anodont pectinate chaetae.......................................... 5

5A. Branchial stems loose........................................ M. pseudosessiloa Zanol, da Silva & Hutchings, 2017

5B. Branchial stems completely attached to the body wall........................................................ 6

6A. Notopodial cirri simple, semi-bifurcated or bifurcated. Eyes present........................... M. bifurcata Kott, 1951

6B. Notopodial cirri always simple. Subacicular hooks uni- to bidentate. Eyes absent.................................................................................................. M. sessilobranchiata Hartmann-Schröder, 1984

7A. Presence of thick, wide anodont pectinate chaetae with 3–4 internal long teeth........................ M. baudini n. sp.

7B. Absence of thick, wide anodont pectinate chaetae............................................................ 8

8A. Compound spinigers present in anterior chaetigers only....................... M. fauchaldi Glasby & Hutchings, 2010

8B. Compound spinigers present along the whole body........................................................... 9

9A. Prostomial appendages peduncle present. Presence of unidentate subacicular hooks................................................................................................ M. kristiani Zanol, da Silva & Hutchings, 2016

9B. Prostomial appendages peduncle absent. Subacicular hooks always bidentate.................................................................................................. M. mullawa Hutchings & Karageorgopoulos, 2003