Streptocephalus sudanicus Daday, 1910

Sainz-Escudero, Lucía, Alonso, Miguel & Sánchez-Vialas, Alberto, 2022, Diversity and distribution of Anostraca in temporary ponds in Western Africa with description of a new species of Streptocephalus Baird, 1852 (Pancrustacea: Branchiopoda: Streptocephalidae), Zootaxa 5213 (4), pp. 388-412 : 405

Streptocephalus sudanicus Daday, 1910

Streptocephalus sudanicus Daday, 1910b: 261 [Terra typica: Sudan, Nioro. Types at the Museum National d’Histoire Naturelle, Paris, and (6942) at the Zoological Institute of the Academy of Sciences (Saint Petersburg, Russia); Belk & Brtek 1995].

Material examined. Six males, seven females from Senegal: Tambacounda, Gourel Yoba, 39 m, 13º25′04.62″N 13 º 24′30.23″W, 11-VIII-2015; MNCN 20.04 /20440–20.04/20452. One male from Senegal: Tambacounda, Diabal , 56 m, 14 º 45′37.66″N 12 º 26′06.66″W, 16-VIII-2015 ; MNCN 20.04 /20453 ( Table 2 ) .

Published records. Burkina Fasso: Arbolle, Nion ( Maeda-Martínez et al. 1995b). Mali: Nioro du Sahel (Brendock et al. 1992; Belk & Brtek 1997); Yéliman ( Belk & Brtek 1997); Goumbou ( Belk & Brtek 1997). Niger: Chad-Niger región; Margdi (Brendock et al. 1992). Nigeria: Tofa E of Kabo ( Maeda-Martínez et al. 1995b). Senegal: pond in Ndilla, close to Linguère ( Monod 1969; Brendock et al. 1992); Palagu ( Maeda-Martínez et al. 1995b). Sudan: Kas, E Nyalal lake ( Maeda-Martínez et al. 1995b);

Geographic distribution. Burkina Faso, Mali, Niger, Senegal, Sudan. Some localities reported from Sudan (Brendock et al. 1992) are actually located in Mali.

Remarks. Brendock et al. (1992) noted the singularities of Streptocephalus sudanicus based on the presence of spinules on the finger dorsal side and the existence of tetrahedral eggs ( Fig. 3C ). They also created a new taxon, the subgenus Parastreptocephalus , based on these characters. Other species included in this taxon are S. lamellifer Thiele, 1900 , S. kaokoensis Barnard, 1929 , and S. zuluensis Brendonck & Hamer, 1992 (Brendock et al. 1992). The studied pecimens of S. sudanicus were found in pools with turbid water. Live specimens present the cercopods with a marked red coloration.

Figures

FIGURE 3. Electronic scanning microscope images of the eggs of: A, Streptocephalus wolof sp. nov., 2 km north of Podor; B, Streptocephalus zeltneri, Bandafassi; C, Streptocephalus sudanicus, Gourel Yoba; D, Branchinella (B.) chudeaui, Tilagne Tokossel. Scale bar indicates 100 µm for each egg sample.