Stygonitocrella, Reid, Hunt & Stanley, 2003

Karanovic, Tomislav & Hancock, Peter, 2009, On the diagnostic characters of the genus Stygonitocrella (Copepoda, Harpacticoida), with descriptions of seven new species from Australian subterranean waters 2324, Zootaxa 2324 (1), pp. 1-85 : 38

Key to species of Stygonitocrella .

1 Caudal rami shorter than anal somite .......................................................................................................................... 2

- Caudal rami longer than anal somite ............................................................ S. sequoyahi Reid, Hunt & Stanley, 2003

2 Armature on fifth leg endopod absent .......................................................................................................................... 3

- This armature present ............................................................................................................ S. dubia ( Chappuis, 1937)

3 Antennal exopod with three setae ............................................................................................................................... 4

- Only two setae present ................................................................................................... S. orghidani ( Petkovski, 1973)

4 Anal operculum smooth ........................................................................................................ S. montana ( Noodt, 1965)

- Operculum ornamented ..................................................................................................... S. guadalfensis Rouch, 1985