Hemiarthrus, Giard & Bonnier, 1887

publication ID	https://doi.org/ 10.11646/zootaxa.4845.2.7
publication LSID	lsid:zoobank.org:pub:ED92874B-EBFF-4A77-A9C8-B654F30BA28C
DOI	https://doi.org/10.5281/zenodo.4407349
persistent identifier	https://treatment.plazi.org/id/03808789-FFC5-A474-FFCD-AAFBCDA885BB
treatment provided by	Plazi
scientific name	Hemiarthrus
status

Key to 5 species of genus Hemiarthrus View in CoL (based on females)

1 Pleon with bifurcated end....................................................... H. abdominalis ( Krøyer, 1840) View in CoL

- Pleon ending in a single point........................................................................... 2

2 Pereomeres almost completely fused......................................... H. surculus Boyko & Williams, 2004 View in CoL

- Pereomeres separated.................................................................................. 3

3 Barbula with three pairs of projections......................................................... H. alphei View in CoL n. sp.

- Barbula with fewer than three pairs of projections........................................................... 4

4 Lateral plates of pleon with distal, hook-like projection.............................. H. nemaocarcini Stebbing, 1914

- Lateral plates of pleon entire, without any projections................................... H. synalphei ( Pearse, 1950) View in CoL