Howells Freshwater Mussels App

REPRODUCTIVE BIOLOGY - II• MOST HAVE SEPARATE SEXES.– Some species are hermaphrodites.– Sexes in some species are distinct.• GLOCHIDIA HAVE THREE FORMS:– Hooked glochidia with large spines.– Apron or hookless glochidia.– Axe-head glochidia.FemaleMaleTexas Fatmucket (Lampsilis bracteata)Hookless GlochidiaHooked GlochidiaAxe-head GlochidiaGlochidia images inyellow were modifiedfrom SEM photos byM.A. Hoggarth