Figure 14 in The complex case of the calcareous sponge Leucosolenia complicata %Porifera: Calcarea): hidden diversity in Boreal and Arctic regions with description of a new species

Figure 14. Leucosolenia variabilis Haeckel* 1870 body wall structure and cell types of bordering tissues. A* B* semi-thin sections of body wall of sponge; C* exopinacocytes; D* choanocytes; E* porocyte; F* endopinacocyte. Scale bars: A* 50 µm; B* 20 µm; C* D* 5 µm; E* F* 2 µm. Abbreviations: am* amoeboid cell; ch* choanocytes; chd* choanoderm; ex* exopinacocyte; exp* exopinacoderm; f* flagellum; m* mesohyl; mv* microvilli; n* nucleus; po* porocyte; sb* symbiotic bacteria; sc* spherulous cells.