Taxonomy of Paraplatyarthrus Javidkar and King (Isopoda: Oniscidea: Paraplatyarthridae) with description of five new species from Western Australia, and comments on Australian Trichorhina Budde-Lunde, 1908 (Platyarthridae) Author Javidkar, Mohammad Author King, Rachael A. Author Cooper, Steven J. B. Author Humphreys, William F. Author Austin, Andrew D. text Zootaxa 2017 4243 3 401 431 journal article 36268 10.11646/zootaxa.4243.3.1 1e56377e-aef3-4991-bcde-bc857fd36926 1175-5326 400092 06BB3BA9-E53C-4EF9-BD58-B853BF64B88D Key to species of Paraplatyarthrus from Western Australia * 1. Maxilla 2 with no delimiting line between lobes (see Fig. 17 E)................................... P. pallidus sp. nov. - Maxilla 2 with delimiting line between lobes (see Fig. 5 F).................................................... 2 2. Eyes absent (no ommatidia present) (see Fig. 2 H)................................................ P. subterraneus - Eyes present or significantly reduced (1–5 ommatidia present).................................................3 3. Male genital papilla apically truncated ( Fig. 9 C); eyes with 1 very reduced orange ommatidium-like component ( Fig. 2 C)...................................................................................... P. cunyuensis sp. nov. - Male genital papilla apically rounded ( Fig. 19 A); eyes with 3–5 black ommatidia................................. 4 4. Cephalic lateral lobes enlarged ( Fig. 11 H); male pleopod 1 exopodite with posterior point developed ( Fig. 13 B)................................................................................................. P. nahidae sp. nov. - Cephalic lateral lobes small ( Figs. 2 E–F); male pleopod 1 exopodite with no or a weak posterior point ( Fig. 16 B)........ 5 5. Eyes with 3 ommatidia............................................................ P. occidentoniscus sp. nov. - Eyes with 5 ommatidia............................................................. P. crebesconiscus sp. nov. (* P. australiensis could not be included in the key due to a lack of material)