Zoological Studies

Vol. 61, 2022

(update: 2022.10.13)

On a New Species of Pseudocypretta Klie, 1932 (Crustacea, Ostracoda) from the Neotropical Region, with a Discussion on the Position of the Genus

Vitor Góis Ferreira1,*, Nadiny Martins de Almeida1, Janet Higuti1,2,§, and Hiroyuki Motomura3,4,§
doi:-

1State University of Maringá (UEM), Centre of Biological Sciences (CCB), Department of Biology (DBI), Graduate Program in Ecology of Inland Water Ecosystems (PEA). Av. Colombo, 5790, CEP 87020-900. Maringá, PR, Brazil. *Correspondence: E-mail: vgferreira@outlook.com (Ferreira).
 E-mail: nadinymartinsdealmeida@gmail.com (de Almeida)
2State University of Maringá (UEM), Centre of Biological Sciences (CCB), Centre of Research in Limnology, Ichthyology and Aquaculture (Nupélia). Av. Colombo, 5790, CEP 87020-900. Maringá, PR, Brazil. E-mail: janethiguti@gmail.com (Higuti)

3Royal Belgian Institute of Natural Sciences, Freshwater Biology, Vautierstraat 29, B-1000 Brussels, Belgium. E-mail: darwinula@gmail.com; kmartens@naturalsciences.be (Martens)
4Ghent University, Biology, K.L. Ledeganckstraat 35, B-9000 Ghent, Belgium

§J Higuti and K Martens are joint senior authors.
Received 28 January 2022 / Accepted 22 September 2022
Communicated by Benny K.K. Chan

Pseudocypretta amor sp. nov., (named after the carapace spots resembling the word “Love”) is here described from all-female populations from the four major floodplains in Brazil. The new species is compared to the other two know species in the genus, P. maculata Klie (1932), the type species, and P. lineata Ma and Yu (2020). As the latter two species are thus far found exclusively in South East Asia and China, respectively, the present extension of the areal of the genus to South America is considerable. Several morphological characters in this genus and species are discussed, especially the presence of marginal septa in the valves, the candonid type T3 with 3rd and 4th segment separated (candonid type) and the caudal ramus which is reduced to a flagellum (cypridopsine type) or is fully absent. Based on the combination of these and other characters, the genus Pseudocypretta is here transferred from the Cyprettinae to the tribe Cyprettadopsini in the Cypridopsinae, as it is closely related to the genus Cyprettadopsis Savatenalinton, 2020. The presence of the candonid type T3 in Cyprididae and Notodromadidae, where the T3 generally has a pincer-shaped tip by the fusion of the 3rd and the 4th segment, is further discussed.

Key words: Areal extension, Neotropics, Comparative morphology, Taxonomy, Circumtropical.

Citation: Ferreira VG, de Almeida NM, Higuti J, Martens K. 2022. On a new species of Pseudocypretta Klie, 1932 (Crustacea, Ostracoda) from the Neotropical region, with a discussion on the position of the genus. Zool Stud 61:77.