Ilyocryptus paranaensis paranaensis Paggi, 1989

Ovoid body, dorsal keel present but not developed, molting complete; each valve bears a horn-like projection; depression between head and rest of body not 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 low mounds; spine on the second segment of endopodite of the antenna not segmented. Postabdomen wide, length of preanal similar to postanal; marginal denticles of the preanal part with regular morphology; 10-14 marginal spines; distalmost part of the postanal part with 5-9 rudimentary lateral setae, up seven long lateral setae which are markedly longer than marginal spines; basal spines on the postabdominal claw of different length.

Comments: Ilyocryptus paranaensis paranaensis occurs from Argentina to Venezuela. In Brazil, this taxon was found in three localities in the state of São Paulo (Fig. 3C). The complete description of Ilyocryptus paranaensis can be found in Paggi (1989) and Kotov & Štifter (2006).