Annotated type catalogue of the Bothriembryontidae and Odontostomidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London Author Breure, Abraham S. H. Netherlands Centre for Biodiversity Naturalis, P. O. Box 9517, Leiden, the Netherlands bbreure@xs4all.nl Author Ablett, Jonathan D. Natural History Museum, Division of Higher Invertebrates, London, SW 7 5 BD, UK text ZooKeys 2012 2012-04-10 182 1 70 http://dx.doi.org/10.3897/zookeys.182.2720 journal article http://dx.doi.org/10.3897/zookeys.182.2720 1313-2970-182-1 FF8CFFCE9D40C74AFFBE5F60FFAFFF95 577124 Placostylus (Euplacostylus) cylindricus Fulton, 1907 Figs 11C, 11iii Placostylus (Euplacostylus) cylindricus Fulton 1907 : 154, pl. 10 fig. 3. Placostylus (?Proaspastus) cylindricus (Fulton); Breure and Schouten 1985 : 64. Eumecostylus cylindricus (Fulton); Delsaerdt 2010 : 39, pl. 5 figs 1-5. Type locality. "Isabel Island, Solomons" (see remarks). Label. "Isabel Id. / Solomon Ids.", in Fulton's handwriting. Dimensions. "Maj. diam. 23, alt. 71 mm."; lectotype H 71.3, D 27.4, W 6.7. Type material. NHMUK 1907.5.3.160, lectotype (ex Fulton). Remarks. Fulton (1907) mentioned that he had three specimens, of which the NHMUK specimen corresponds to his figure. Contrary to Breure and Schouten (1985), it should not be considered as holotype, but is here designated as the lectotype (Art. 74.6 ICZN). The specimen has the apex damaged. Clench (1941) questioned the type locality and suggested it was erroneous. Also Delsaerdt (2010) has been unable to locate this species on Santa Isabel; it is only known from Guadalcanal. Current systematic position. Bothriembryontidae, Eumecostylus cylindricus (Fulton, 1907).