Anthalona verrucosa verrucosa ( Sars, 1901 )

Elmoor-Loureiro, Francisco Diogo R. Sousa Elisângela Reis Rangel Mariana Lessa Carneiro da Silva Ciro Y. Joko Lourdes M. A., 2017, An update for cladoceran fauna (Crustacea, Branchiopoda) from Lake Paranoá, Central Brazil, with the fi rst description of a male of Leydigiopsis ornata Daday, 1905, Nauplius (e 2017029) 25, pp. 1-13 : 6

Anthalona verrucosa verrucosa ( Sars, 1901)

( Fig. 3A–E )

Material examined: One adult parthenogenetic female ( FDRS488 )

Remarks: The verrucosa -group has a complicated taxonomic history. It was considered a member of the artificial genus Biapertura Smirnov, 1971 . More recently, Van Damme et al. (2011) raised the verrucosa - group to genus status and, at the same time, they showed the existence of a high diversity of species. Anthalona verrucosa verrucosa is easily recognized by the presence of two connected main head pores, lateral head pores with cosmaria-like sacs underneath them; lateral fascicles of postabdomen not exceeding the level of marginal denticles; single denticles on the labral keel; large proximal denticle on the IDL setae. The specimen observed at Lake Paranoá had a single main head pore.

Distribution: Neotropics (Van Damme et al.,

2011). Recently, Sousa et al. (2015c) revised many populations of A. verrucosa verrucosa , indicating wide distribution of this species in Brazil.

Figures

Figure 3. Parthenogenetic females from Lake Paranoá: A, Anthalona verrucosa verrucosa; B, idem, main head pores; C, idem, labral keel; D, idem, postabdomen; E, idem, Inner Distal Lobe (IDL) of the first limb. F, Leydigiopsis ornata, G, idem, antenna; H, idem, postabdominal claw. Scale bars = 50 µm.