Fig. 2 in Boring bryozoans: an investigation into the endolithic bryozoan family Penetrantiidae

Fig. 2 Stereomicroscopic overview of colonies of Penetrantia concharum from Sweden in Pecten maximus (Linnaeus, 1758) shell a, b. b Close-up of inner shell surface. c–f P. cf. concharum from Roscoff, France in Anomia ephippium Linnaeus (1758). d–f Closeup of inner shell surface. e, f Close-ups of colony shown in d with young developing buds in e and unique sac zooids in f. Squares mark the area of magnification. ap aperture, b bud, st stolon, sz sac zooid