On the diagnostic characters of the genus Stygonitocrella (Copepoda, Harpacticoida), with descriptions of seven new species from Australian subterranean waters 2324 Author Karanovic, Tomislav Author Hancock, Peter text Zootaxa 2009 2009-12-22 2324 1 1 85 https://biotaxa.org/Zootaxa/article/view/zootaxa.2324.1.1 journal article 10.11646/zootaxa.2324.1.1 1175­5334 5313036 55E33A9D-AB38-4FA9-9CBD-0AA24A130CE4 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