Essais d’hybridisation entre Gammarus aequicauda (Martynov, 1931) et Gammarus plumicornis Costa, 1853
Bulletin Zoologisch Museum , Volume 1 - Issue 12 p. 153- 156
Two morphologically and ecologically different forms within the genus Gammarus, known as G. plumicornis Costa, 1853 and G. aequicauda (Martynov, 1931), are interfertile in experiments and produce a vital F1. In nature, however, heterogeneous couples are rare, although not altogether absent. It is supposed that plumicornis and aequicauda are two former subspecies, which – owing to an overlap in their present distribution areas – have not developed sufficient isolating mechanisms to prevent hybridization.
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Stock, J.H. (1969). Essais d’hybridisation entre Gammarus aequicauda (Martynov, 1931) et Gammarus plumicornis Costa, 1853. Bulletin Zoologisch Museum, 1(12), 153–156.