Levensteiniella, Pettibone, 1985

Wu, Xuwen & Xu, Kuidong, 2018, Levensteiniella manusensis sp. nov., a new polychaete species (Annelida: Polynoidae) from deep-sea hydrothermal vents in the Manus Back-Arc Basin, Western Pacific, Zootaxa 4388 (1), pp. 102-110 : 109

Key to species of Levensteiniella when only females present

1 Elytra without papillae on surface......................................................................... 2

- Elytra with papillae on surface........................................................................... 3

2 Elytra with thickened bulbous projections on posterior border.............................................. L. iris

- Elytra with large median longitudinal fold on surface.................................................. L. plicata

3 Only micropapillae present.............................................................................. 4

- Both micro- and macropapillae present.................................................................... 5

4 Micropapillae oval; thickened bulbous projections present on posterior border; notochaetae smooth or serrated with widely spaced spines along curved side................................................................ L. intermedia

- Micropapillae filiform; thickened bulbous projections absent; notochaetae serrated with numerous spinous rows along curved side........................................................................................ L. kincaidi

5 Thickened bulbous projections present on posterior border; notochaetae smooth or serrated with widely spaced spines along curved side.......................................................................... L. manusensis sp. nov.

- Thickened bulbous projections absent; notochaetae serrated with widely spaced spines along curved side.......... L. raisae