Ilyocryptidae, Smirnov 1976 emend. Smirnov, 1992

Sousa, Francisco Diogo Rocha & Elmoor-Loureiro, Lourdes Maria Abdu, 2019, Identification key for the Brazilian species and subspecies of the family Ilyocryptidae (Crustacea, Branchiopoda, Anomopoda), Papéis Avulsos de Zoologia 59, pp. 1-8 : 4

Identification key for the species and subspecies of Ilyocryptidae

1a Valves with lateral projection................................................................................................................................................................................................ 2

1b Valves without lateral projection........................................................................................................................................................................................... 3

2a Spine on the second segment of endopodite of antenna bi-segmented............................................................................. Ilyocryptus paranaensis inarmatus

2b Spine on the second segment of endopodite of antenna not segmented......................................................................... Ilyocryptus paranaensis paranaensis

3a Preanal margin of postabdomen with duplicated denticles (one or more)............................................................................................................................ 4

3b Preanal margin of postabdomen with regular denticles........................................................................................................................................................ 5

4a Distalmost part of postanal margin of postabdomen with 4-5 rudimentary setae;up seven long lateral setae..................... Ilyocryptus cuneatus brasiliensis

4b Distalmost part of postanal part of postabdomen with eight rudimentary setae;8-9 long lateral setae........................... Ilyocryptus silvaeducensis paraensis

5a Postanal part of postabdomen with 3-4 long lateral setae;a long“gap” between proximalmost lateral seta and anal margin.............................................6

5b Postanal part of postabdomen with5-7 lateral setae;“gap” not developed .................................................................................................... Ilyocryptus sarsi

6a Setae on the posterior margin of carapace with inflated base and armed with a single spine.................................................................... Ilyocryptus spinifer

6b Setae on the posterior margin of carapace with regular morphology,without spine .............................................................................. Ilyocryptus plumosus