Corona pfeifferi is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Orthalicidae.
[1] Reproductive system: The penis is proximally slender and subcylindrical, constricted at the base; median part is swollen, pear-shaped, tapering towards the distal part which is subcylindrical again.
Vas deferens is adhering to and partially inside the penial complex.
Internal structure of penial complex is with longitudinal folds in proximal part of penis, changing into a dense tubular network and a widened lumen in the distal part of the penis.
In the specimen dissected, a chitinous spermatophore was being formed with the shape of flagellum and epiphallus, its initial stage inside the flagellum and extending to the distal part of the penis.