Distribution and morphological variation of Streptocephalus torvicornis (Waga, 1842) in Northern Africa

The known range of Streptocephalus torvicornis is extended to areas of the western and central Sahara and Sahel. Morphological variation between populations is important, and cannot be accommodated within the known Iberian and Maghrebian subspecific taxa, which appear untenable. A grouping of popula...

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Bibliographic Details
Published in:Hydrobiologia 1991-04, Vol.212 (1), p.203-208
Main Authors: DUMONT, H. J, DE WALSCHE, C, MERTENS, J
Format: Article
Language:English
Subjects:
Biological and medical sciences
Crustacea
Freshwater
Fundamental and applied biological sciences. Psychology
Invertebrates
Streptocephalus torvicornis
Systematics. Geographical distribution
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Summary:The known range of Streptocephalus torvicornis is extended to areas of the western and central Sahara and Sahel. Morphological variation between populations is important, and cannot be accommodated within the known Iberian and Maghrebian subspecific taxa, which appear untenable. A grouping of populations according to drainage basins appears, however, possible. Populations of the Hoggar, Air, and Tibesti waters, draining towards the Soudanian zone, are more closely related than populations from waters draining towards the Atlantic. Tassili-n-ajjer populations from central Algeria have individual characteristics, and deserve further study.
ISSN:0018-8158
1573-5117
DOI:10.1007/BF00026002