Unravelling the convoluted nomenclature of Marphysa simplex (Annelida, Eunicidae) with the proposal of a new name and the re-description of species

Distribution of branchial filaments throughout the body. A. Syntype 1 of Marphysa simplex Crossland, 1903 (BNHM 1924.3.1.1-2) with L10: 8.6 mm, TL: 137 mm and 273 chaetigers; B. Syntype 1 of Marphysa furcellata Crossland, 1903 (BNHM 1924.3.1.139) with L10: 6.3 mm, TL: 40 mm and 114 chaetigers; C. Syntype 1 of Marphysa macintoshi Crossland, 1903 (BNHM 1924.3.1.22-3) with L10: 8.1 mm, TL: 18.8 mm and 262 chaetigers. Dotted blue line in B indicates the organism is incomplete.