Fig. 3From: Age and growth of Glycymeris longior (Sowerby, 1832) clam at the southern edge of its distribution (Argentine Sea)Three ventral margins photographed on thick sections of shells of Glycymeris longior from El Sótano, San Matías Gulf, collected in a January 2016, b July 2015 and c June 2011. Wide annual increments were registered in 2007 and 2010 (dark grey bands; common for all images); narrow increments were found in 2013 (in a and b). Scale bar: 250 μmBack to article page