Caracteres morfométricos en <i>Difflugia corona</i> (Testacea, Difflugidae) en ambientes lénticos del Chaco, Argentina

Abstract

Morphometric characters of two populations of <i>Difflugia corona</i> Wallich, 1864 collected in two climatic stations (Spring, Autumn) in lentic environments of Chaco Province, Argentina, are studied. In the first climatic station it was registered specimens of bigger size; in the second, the size of the individuals was very below the minimum values registered. It is suggested a possible relationship between the size of the organisms and the availability of the inhabitable vegetable substratum.