Fig. 4 in Revision of Chondrocyclus s.l. (Mollusca: Cyclophoridae), with description of a new genus and twelve new species

Fig. 4. Chondrocyclus convexiusculus (Pfeiffer, 1855). A. Syntype (NHMUK 20120231). B–K. ELM W3636. B. Dorsal view. C. Aperture view. D. Ventral view. E. Protoconch. F. Detail of axial lamellae of periostracum. G. Portion of radula. H–I. Operculum. J–K. Penis, lateral and dorsal views, showing position on head. Scale bars: A, C = 3 mm; B, D = 2 mm; E = 200 µm; F, J–K = 500 µm; G = 50 µm; H–I = 1 mm.