Ilyocryptus sarsi Stingelin 1913

Main Authors: Sousa, Francisco Diogo Rocha, Elmoor-Loureiro, Lourdes Maria Abdu
Format: info publication-taxonomictreatment Journal
Terbitan: , 2019
Subjects:
Online Access: https://zenodo.org/record/4974193
Daftar Isi:
  • Ilyocryptus sarsi Stingelin, 1913 Ovoid body, dorsal keel present but not developed, molting incomplete; setae on the posterior margin of valves with inflated base and armed with a slender and sharp spine, setulae present. Head triangular, ovoid or semi-ovoid, fornices prominent; postabdomen relatively short, preanal and postanal part of similar length; anal margin short with 6-9 setulae inserted laterally; marginal denticles of preanal part with regular morphology, relatively long; 17-20 marginal spines, of which median ones have similar length; 5-7 lateral setae markedly longer than marginal spines;“gap” between proximalmost lateral seta and anal margin not developed; basal spines on the postabdominal claw of different length. Comments: Ilyocryptus sarsi was treated in Elmoor-Loureiro (1997) as Ilyocryptus sordidus Liévin, 1848, a species with Palearctic distribution. However, Kotov et al. (2001) found a significant number of differences between these two species. In spite of the low number of records (Fig. 3F), Ilyocryptus sarsi has a broad occurrence range in Brazil.
  • Published as part of 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), pp. 1-8 in Papéis Avulsos de Zoologia 59 on page 7, DOI: 10.11606/1807-0205/2019.59.23, http://zenodo.org/record/4613798