Megastygonitocrella Karanovic & Hancock 2009, gen. nov.
Creators: name: Karanovic, Tomislav
name: Hancock, Peter
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Hexanauplia
Harpacticoida
Ameiridae
Megastygonitocrella

description: Key to species of Megastygonitocrella gen. nov.   
1 Endopod of second leg with single apical element...................................................................................................... 2  
 - Endopod of second leg with two apical elements ......................................................... M. karamani (Petkovski, 1959)   
2 Endopod of second and third legs two-segmented...................................................................................................... 3  
- Endopod of second and third legs one-segmented....................................................................................................... 4  
 3 Inner seta on second endopodal segment of second leg absent........................................ M. petkovskii (Pesce, 1985)   
 - This seta present....................................................................... M. colchica (Borutzky & Michailova-Neikova, 1970)   
4 Fifth leg with unarmed endopodal lobe....................................................................................................................... 5  
- Fifth leg endopodal lobe armed................................................................................................................................... 7  
5 Fifth leg exopod free..................................................................................................................................................... 6  
 - Fifth leg exopod fused to somite ............................................................................................. M. pagusregalis sp. nov.   
 6 Habitus constricted at genital somite ..................................................................................................... M. dec sp. nov.   
 - Habitus not constricted .................................................................................................................... M. kryptos sp. nov.   
7 Third exopodal segment of fourth leg with one or two inner setae.............................................................................. 8  
 - Third exopodal segment of fourth leg without inner setae ........................................ M. ljovuschkini (Borutzky, 1967)   
8 Third exopodal segment of fourth leg with one inner seta.......................................................................................... 9  
 - Third exopodal segment of fourth leg with two inner setae....................................... M. bispinosa (Karanovic, 2006)   
9 Integument without cuticular windows...................................................................................................................... 10  
 - Cuticular windows present .......................................................................................... M. trispinosa (Karanovic, 2006)   
 10 Fifth leg endopodal lobe with two armature elements ................................................................... M. ecowisei sp. nov.   
 - Fifth leg endopodal lobe with only one element....................................................... M. unispinosa (Karanovic, 2006)
description: Published as part of 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, pp. 1-85 in Zootaxa 2324 (1) on page 49, DOI: 10.11646/zootaxa.2324.1.1, http://zenodo.org/record/5313036