| author | date | title | journal / publication | Vellnow N, Marie-Orleach L, Zadesenets KS, Schärer L | 2018 | abs. | Bigger testes increase paternity in a simultaneous hermaphrodite, independently of the sperm competition level. | Journal of Evolutionary Biology, Vol 31(2): 180-196 |
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| Macrostomum lignano Ladurner, Schärer, Salvenmoser, & Rieger, 2005 | w | other research on this sp. |