Ilyocryptus paranaensis inarmatus Kotov, Eliáz-Gutiérrez & Gutiérrez-Aguirre, 2001

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 : 4-6

Ilyocryptus paranaensis inarmatus Kotov, Eliáz-Gutiérrez & Gutiérrez-Aguirre, 2001

Ovoid body, dorsal keel present but not developed, molting complete; each valve bears a horn-like projection; depression between head and rest of body well developed; setae on the posterior margin of valves with inflated base and armed with a single spine which is followed by setulae; posteriormost setae on the valves armed with setulae. Head triangular shaped, fornices prominent; first segment of antennules with developed mounds; spine on the second segment of endopodite of antenna bi-segmented. Postabdomen wide, preanal part slightly longer than postanal; marginal denticles of the preanal part with regular morphology; 7-9 marginal spines; distalmost part of the postanal part with 7-13 rudimentary lateral setae, up six long lateral setae which are markedly longer than marginal spines; basal spines on the postabdominal claw of different length.

Comments: Ilyocryptus paranaensis inarmatus was initially described from materials obtained in different parts of Mexico. It is likely that this taxon possesses a broad distribution in the Neotropics, even though there is only one known record (in central Brazil) obtained from outside its type-region ( Fig. 3B ). For further information regarding the morphology of this species regarding the Brazilian population, or information concerning its habitat, see Sousa & Elmoor-Loureiro (2011).

Figures

Figure 3. Geographic distribution Ilyocryptidae Smirnov 1976 emend.Smirnov,1992 taxa of Brazil. (A) Ilyocryptus cuneatus brasiliensis.(B) Ilyocryptus paranaensis inarmatus.(C) Ilyocryptus paranaensis paranaensis.(D) Ilyocryptus plumosus.(E)Ilyocryptus silvaeducensis paraensis.(F) Ilyocryptus sarsi.(G) Ilyocryptus spinifer.