New Orthalicidae (Mollusca, Gastropoda) from Venezuelan Guayana: unravelling secrets from the Lost World Author Breure, Abraham S. H. text Zootaxa 2009 2065 25 50 journal article 10.5281/zenodo.186920 695e995e-3a9a-41b8-bafa-ed8366b37ef4 1175-5326 186920 Drymaeus (Drymaeus) yapacanensis Breure & Eskens, 1981 ( Fig. 8 G─H) Drymaeus (Drymaeus) yapacanensis Breure & Eskens, 1981 : 47 , fig. 159, 343; pl. 3 figs 5─6, pl. 5 fig. 9. Type locality: Venezuela , Territoria Amazonas, Cerro Yapacaná, ca. 700 m ; holotype RMNH 55331. Genitalia, mandibula, radula. Material. Venezuela , Estado Amazonas, Cerro Yapacana, 700 m , J. Cerda leg., ii.1978 ( RMNH 55331/ holotype , 55332/1 paratype ). Remarks. So far, only the type material is known, which was collected on one of the slopes; the top of this isolated tepui is at 1300 m ( Huber 1995a: fig. 1.22 ).