Litarcturus Brandt, 1990

Liu, Wenliang & Sha, Zhongli, 2015, Litarcturus kexueiae sp. nov., a new deep-sea isopod from the Okinawa Trough (Crustacea, Isopoda, Valvifera, Antarcturidae), Zootaxa 4013 (4), pp. 531-540 : 532

Key to the species of the genus Litarcturus Brandt, 1990

1. Pleotelson without caudal spines................................................... L. bicornis ( Kensley, 1984)

- Pleotelson with caudal spines............................................................................ 2

2. Head without supraocular spines......................................................................... 3

- Head with supraocular spines........................................................................... 6

3. Pereonites 1–7 with submedial spines............................................ L. americanus ( Beddard, 1886)

- Pereonites 1–7 without submedial spines.................................................................. 4

4. Pleotelson with caudal spines not surpassing apex........................................ L. lillei ( Tattersall, 1921)

- Pleotelson with caudal spines surpassing apex............................................................... 5

5. Head with supraocular lobe...................................................... L. antarcticus ( Bouvier, 1910)

- Head without supraocular lobe..................................................... L. coppingeri (Miers, 1881)

6. Head with supraocular spines surpassing apex............................................................. 7

- Head with supraocular spines not surpassing apex................................. L. granulosus ( Nordenstam, 1933)

7. Pleotelson with caudal spines not surpassing apex..................................... L. stebbingi ( Beddard, 1886)

- Pleotelson with caudal spines surpassing apex............................................... L. kexueiae sp. nov.