Hansenomysis

Key to species of Hansenomysis View in CoL from the Southern Ocean

Adapted from O. Tattersall (1961), Bacescu (1971), Bravo & Murano (1997) and San Vicente & Sorbe (2008).

1.a. Acute rostrum on the carapace anterior margin........................................ H. anaramosae San Vicente & Sorbe, 2008

1.b. Without rostrum on the carapace anterior margin ........................................................................................................ 2

2.a. Antennal scale with spines all along its outer margin.................................................. H. falklandica Tattersall, 1955 View in CoL

2.b. Antennal scale without spines on the distal part of its outer margin ........................................................................... 3

3.a. Postero-dorsal part of abdominal somites 3–6 produced into strong spines......................................... H. sorbei n. sp.

3.b. Postero-dorsal part of abdominal somites 3–6 not produced into strong spines .......................................................... 4

4.a. Carapace with acute antero-lateral processes............................................................ H. angusticauda Tattersall, 1961 View in CoL

4.b. Carapace with rounded antero-lateral angles....................................................... H. antarctica View in CoL Holt & Tattersall, 1906