Fig. 2 in A new species of Oopeltidae (Mollusca, Pulmonata, Arionoidea), with a revision of the subfamily Ariopeltinae and remarks on its affinities within the family and superfamily

Fig. 2. Ariostralis nebulosa, inner perforated wall of the vaginal bulb removed and photographed from its outer side. Abbreviations: PRF – perforations, SP STR – tissue strands suspending the inner wall of the vaginal bulb from its outer wall.