Siphonoecetini Just, 1983 (Crustacea, Amphipoda, Ischyroceridae) 13: Western Australian species of Bubocorophiina in Rhinoecetes, Cephaloecetes, Sinoecetes, Borneoecetes and Pararhinoecetes gen. nov. Author Just, Jean text Zootaxa 2019 2019-02-08 4554 1 101 140 journal article 27579 10.11646/zootaxa.4554.1.3 3ca0710c-d484-4e32-805a-3c6281d1ef6e 1175-5326 2623382 B33D4918-42FB-41EB-A562-E3194913EF7D Key to Western Australian Bubocorophiina For quick comparison of Rhinoecetes species see Figs 1–2 1. Uropod 2 absent ( Fig. 22 us).......................................................... Sinoecetes reni sp. nov. - Uropod 2 present with 1 ramus.......................................................................... 2 2. Rostrum absent; pseudorostrum present on frons........................................ Cephaloecetes enigmaticus - Rostrum present....................................................................................... 3 3. Rostrum split into two acute points ( Fig. 23 cdv)............................. Pararhinoecetes bicornis gen. et sp. nov. - Rostrum straight or curved, pointed....................................................................... 4 4. Maxilla 1 palp of single article ( Fig. 19 , mx1 plp).................................... Borneoecetes minimus sp. nov. - Maxilla 1 palp of two articles............................................................................ 5 5. Uropod 1 peduncle dorsal surface with 1 to a few simple setae.................................................. 6 - Uropod 1 peduncle dorsal surface with robust setae........................................................... 7 6. Coxal plates and pereopods sparsely setose with short setae ( Figs 1 and 3 ); uropod 2 ramus reaching to distal margin of uropod 1 peduncle.............................................................. Rhinoecetes sinuduopopulus sp. nov. - Long coxal plate and pereopodal setae forming dense lateral network ( Figs 1 and 7 ); uropod 2 ramus reaching to distal 4/5 of uropod 1 peduncle........................................................ Rhinoecetes makritrichoma sp. nov. 7. Uropod 1 peduncle dorsal surface with row of 4–7+ robust setae (e.g. Fig. 6 us).................................... 8 - Uropod 1 peduncle dorsal surface with a few (up to 3) robust setae and occasional simple setae....................... 10 8. Uropod 1 peduncle distoventrally with coarsely dentate corona (e.g. Fig. 6 up ped 1).......................................................................................................... Rhinoecetes rockinghamia sp. nov. - Uropod 1 peduncle distoventrally with finely fimbriate corona (e.g. Fig. 7 up1 vv).................................. 9 9. Eye lobes truncate in lateral view, acutely pointed in dorsal view ( Fig. 9 clv, cdv). Pereopods 3–6 sparsely setose. Uropod 2 peduncle with mid-dorsal simple seta; ramus with 2 lateral and 1 or 2 apical simple setae adjacent to terminal robust seta................................................................................... Rhinoecetes lowryi sp. nov. - Eye lobes rounded in lateral and dorsal view ( Fig. 15 clv, cdv). Pereopods 3–4 basis and merus anterior margins with long densely set setae; pereopods 5–6 basis with groups of very long anterodistal setae. Uropod 2 peduncle and ramus without simple setae...................................................................... Rhinoecetes wamus sp. nov. 10. Uropod 1 peduncle dorsal surface with 1 robust seta and a few simple setae ( Fig. 13 us); ramus uropod 2 reaching apex of uropod 1 peduncle.............................................................. Rhinoecetes karkharius sp. nov. - Uropod 1 peduncle dorsal surface with 2–3 robust setae and occasional simple setae................................ 11 11. Rostrum curved; eyelobes broadly rounded ( Fig. 11 clv). Male antenna 2 articles 4 and 5 sparsely setose ( Fig. 11 ). Uropod 2 ramus reaching 2/3 along inner ramus uropod 1......................................... Rhinoecetes caetus sp. nov. - Rostrum straight; eyelobes broad, apically rounded truncate ( Fig. 17 clv). Male antenna 2 articles 4 and 5 densely setose ( Fig. 17 ). Uropod 2 ramus reaching 1/3 along inner ramus.................................... Rhinoecetes setosus sp. nov.