FIGURE 4. Shells. A in Anatomy and function of the penial twin papillae system of the Helicinae (Gastropoda: Helicoidea: Helicidae) and description of two new, small Hemicycla species from the laurel forest of the Canary Islands

FIGURE 4. Shells. A. Hemicycla laurijona sp. nov., holotype. B. Hemicycla laurijona sp. nov., paratypes from Puntas Coloradas, La Gomera. C. Hemicycla perraudierei, from Las Casillas, El Hierro