Pereionotus

Coleman, Oliver & Lowry, James K., 2012, The genus Pereionotus (Crustacea, Amphipoda, Phliantidae) from Australia, Zootaxa 3486, pp. 63-88 : 64

Key to the Australian species of Pereionotus

1. Antenna 1 peduncular article 2 as long as wide; pereopods 1–4 propodi with additional robust seta half-way on the posterior margin and similar robust setae on the anterior margin of the propodi of pereopods 5–7........ P. thomsoni Stebbing, 1899

- Antenna 1 peduncular article 2 longer than wide; pereopods 1–6 propodi without additional robust setae half-way on posterior and anterior margins................................................................................... 2

2. Dorsal keel consisting of subequal evenly rising dorsal humps on pereonites 2–7...................................3

- Dorsal keel humps on pereonites 3–4 shorter than humps on preceding pereonites.................... P. hartmuti sp. nov.

3. Coxae 1–4 with dense fringe of long slender setae on the distal margins........................................... 4

- Coxae 1–4 with sparse setae on the distal margins............................................... P. dieteri sp. nov.

4. Antenna 1 peduncular article 1 slender with subterminal lateral lobe............................. .. P. yongensis sp. nov.

- Antenna 1 peduncular article 1 robust with produced terminal lateral lobe....................................................................................... P. alaniphlias ( J.L. Barnard, 1970) (Hawaii, not recorded in Australia)