Ilyocryptus plumosus Kotov & Štifter, 2004

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 : 7

Ilyocryptus plumosus Kotov & Štifter, 2004

Ovoid body, dorsal keel well developed, molting incomplete; setae on the posterior margin of valves without spine but armed with setulae. Head triangular shaped, fornices prominent; spine on the second segment of endopodite of antenna shorter than mid length of the third segment. Postabdomen large, preanal part shorter than postanal; marginal denticles of preanal part with regular morphology, decreasing of length towards anal part; 17-20 marginal spines which increase in length towards distal part of postabdomen; distalmost part of postanal part with 3-6 rudimentary lateral setae, up four long lateral setae about 5-7 times longer than marginal spines; a long “gap” between proximalmost lateral seta and anal margin. basal spines on the postabdominal claw of different length.

Comments: This is the first report of Ilyocryptus plumosus in Brazil.The description of I. plumosus was based on materials sampled in Venezuela and Nicaragua. In Brazil,this species is rare and only known for the Serra do Cabral hills, state of Minas Gerais ( Fig. 3D ). The complete description of this species, including the thoracic appendages, can be found in Kotov & Štifter (2004).

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.