Skip to main content
Fig. 5 | Helgoland Marine Research

Fig. 5

From: Morphology and ultrastructure of the adult ovarian cycle in Mithracidae (Crustacea, Decapoda, Brachyura, Majoidea)

Fig. 5

Light microscopy of the MAT stage; ae hematoxylin and eosin stain; f mercuric-bromophenol blue stain; g xylidine ponceau stain; h PAS stain; i Alcian blue stain; ac Mithrax tortugae (Rathbun, 1920), Mithrax hispidus (Herbst, 1790) and Mithraculus forceps A. Milne-Edwards, 1875, oocyte showing irregular nucleus and cytoplasm filled with mature yolk vesicles. Note the elliptical and flattened follicular cells; d, e Mithrax tortugae and Mithraculus forceps, acidophilic chorion juxtaposed follicular cells; f, g Mithrax tortugae and Omalacantha bicornuta (Latreille, 1825), chorion and yolk vesicles reactive for proteins; h Mithrax tortugae, chorion and yolk vesicles reactive for neutral polysaccharides; i Omalacantha bicornuta chorion and yolk vesicles with the absence of acid polysaccharides. Note the glycogen granules (white arrow) among the yolk vesicles. C chorion, FC follicular cell, N nucleus, Y yolk vesicles

Back to article page