Ehlersileanira Pettibone, 1970

Cruz-Gómez, Christopher, 2022, Reinstatement of Ehlersileanira simplex (Ehlers, 1887) comb. nov. reinst., distinct from E. incisa (Grube, 1877) (Annelida: Sigalionidae), with a key to all the species of Ehlersileanira, Journal of Natural History 56 (1 - 4), pp. 157-172 : 170-171

Key to species of Ehlersileanira Pettibone, 1970

1 Median antennal ceratophore with only auricles ...................................................................... 2

- Median antennal ceratophore with auricles and ctenidia......................................................... ......... E. andamanensis Aungtonya and Eibye-Jacobsen, 2016 , Thailand, Andaman Sea.

2(1) Median antennal style with short distal article; branchiae from segment 9 ..................... .............................................................................. E. incisa ( Grube, 1877) , Congo, Western Africa.

- Median antennal style with articles of similar length; branchiae from more posterior segments.................................................................................................................................................... 3

3(2) Tentacular cirri long, about four times as long as prostomium; branchiae from segment 16............................................ E. simplex ( Ehlers, 1887) , off Louisiana, Gulf of Mexico.

- Tentacular cirri short, about three times as long as prostomium; branchiae begin before segment 16 ................................................................................................................................. 4

4(3) Prostomium with two pairs of eyes; median antennal ceratophore with a small pair of auricles, which cover 1/4 of the prostomium................................................................................. ................................................ Leanira vulturis Horst, 1917 , Indonesia, Malayan Archipelago.

- Prostomium without eyes; median antennal ceratophore with a large pair of auricles, which cover 2/3 of the prostomium .................................................................................................. .............................................................. Leanira izuenzis Takahashi, 1938 , Izu Peninsula, Japan.