Assessing the Continuous Impact of Tributyltin from Antifouling Paints in a Brazilian Mangrove Area Using Intersex in Littoraria angulifera (Lamarck, 1822) as Biomarker
Figure 1
Development scheme for intersex in Littorina littorea with four different stages. Dorsal views with opened mantle cavity (a) and lateral views of pallial genital tract (b). Abbreviations a: anus; ag: albumen gland; bc: bursa copulatrix; cg: capsule gland; ig: albumen gland; obc: open bursa copulatrix; opo: open pallial oviduct, p: penis; po: pallial oviduct; pr: prostate; rs: receptaculum seminis; sg: seminal groove; vo: vaginal opening (source: [9]).
