Fig. 8 in Boring bryozoans: an investigation into the endolithic bryozoan family Penetrantiidae

Fig. 8 Stolon morphology of the family Penetrantiidae. a–d Stereomicroscopic images of stolons and tubulets of Penetrantia sp. from Japan after decalcification of substrate. d Sac zooid in Penetrantia concharum from Sweden. e Histological semi thin section through the peduncle of P. clionoides from Guam. f Histological semi thin section through the peduncle of Penetrantia sp. from Japan. g Histological semi thin cross section through the stolon of P. concharum from Sweden. h Histological semi thin cross section through the stolon of Penetrantia sp. from Japan. i Adventitious stolon connecting to an autozooid in P. concharum from Sweden. az autozooid, bc body cavity, pc pore complex, s septum, st stolon, sz sac zooid, ts tentacle sheath, tu tubulet