Eremitione, Williams & Boyko & Madad, 2019

Williams, Jason D., Boyko, Christopher B. & Madad, Asma Z., 2019, Branchial parasitic isopods (Crustacea: Isopoda: Bopyridae: Pseudioninae) of hermit crabs (Crustacea: Decapoda: Diogenidae) from the western Pacific, with descriptions of a new genus and three new species, Raffles Bulletin of Zoology 67, pp. 83-118 : 110

Key to species of Eremitione , new genus, based on males

[ E. brandoi (Brian & Darteville, 1941) , new combination and E. calcinii ( Shiino, 1958) , new combination not included because males are unknown]

1. Posterolateral lobes of pleotelson absent................................2

– Posterolateral lobes of pleotelson present ..............................4

2. Margins of pereomeres 1–4 directed anteriorly; head laterally expanded.................................................................................... ......... E. nobilii (Nierstrasz & Brender à Brandis, 1923), new combination

– Margins of pereomeres 1–4 rounded; head subcircular.........3

3. Head fused with pereomere 1................................................... .. E. hyndmanni (Bate & Westwood, 1867) , new combination

– Head separate from pereomere 1 .............................................. ............. E. tuberculata ( Richardson, 1904) , new combination

4. Posterolateral lobes of pleotelson as long as remainder of pleotelson; posterolateral margins of all pleomeres directed laterally .................................................................................. E. quasimodo ( Boyko & Williams, 2004) , new combination

– Posterolateral lobes of pleotelson short; posterolateral margins of all pleomeres directed posteriorly ......................................5

5. Pleotelson not overlapped laterally by pleomere 5.................. ........................... E. giardi ( Calman, 1898) , new combination

– Pleotelson overlapped laterally by pleomere 5 ......................6

6. Pleomere 1 much wider than head ........................................... ................. E. clibanaricola ( Shiino, 1933) , new combination

– Pleomere 1 approximately same width as head ....................... ........................ E. biacuta (Bourdon, 1979) , new combination