Figure 3 from: Smrž J, Kováč L, Mikeš J, Šustr V, Lukešová A, Tajovský K, Nováková A, Režňáková P (2015) Food sources of selected terrestrial cave arthropods. Subterranean Biology 16: 37-46. https://doi.org/10.3897/subtbiol.16.8609

Figure 3 - Pantelozetes cavaticus – mesenteron with concentric bolus. Black arrowheads = apocrine secretion of the walls of mesenteron, red arrowhead = particle of amorphous mass in food bolus. Stained with Masson's trichrome. Abbreviations: ba bacteria loosely out of food bolus fb food bolus g glycogen deposits go gonads me cavity of mesenteron. Scale bar: 0.02 mm.