CLASSE: GASTROPODA: TERRESTRE
FAMÍLIA: BULIMULIDAE
ESPÉCIE: Drymaeus yapacanensis Breure, 1981
Tamanho médio: 30 mm
Ocorrência: Venezuela, Estado Amazonas
Localidade tipo: “Venezuela, Territoria Amazonas , Cerro Yapacaná”
Altitude: 700 m
Nome original: Drymaeus (Drymaeus) yapacanensis Breure, 1981
Descrição original:
(Breure & Eskens, 1981): “shell up to 31.2 mm , 2.18 times as long as wide, narrowl y perforate, with slightly convex sides; thin. Colour pink to yellowish, wit haxia l (reddish-)brown streaks. Surface rather shining, smooth. Whorl s 5.9, hardly convex; suture well impressed. Apertur e elongate-ovate, 1.66 times as long as wide, 0.5 times the total length; pink coloured inside. Peristome thin, slightly expanded; pink coloured. Columellar margin reflexed, dilated above and receding”
Fotos: Breure & Eskens, 1981: HOLOTYPE RMNH 55331, Venezuela, Estado Amazonas, Cerro Yapacaná, J. Cerda leg., ii.1978

Figura: Breure, 2009: (A─C) Drymaeus extraneus (Haas, 1955); (A─B) HOLOTYPE FMNH 49736; (C) FMNH 49734; (D─F) Drymaeus steyermarki (Haas, 1955), HOLOTYPE FMNH 49735; ( G─H) Drymaeus yapacanensis Breure & Eskens, 1981, HOLOTYPE RMNH 55331; (I─S) Drymaeus rex; (I─M, Q─S) PARATYPES UF 284745, 284730, 284759, 284748, 284714, 284719, 284719 e 284715 respectivamente; (N─P) HOLOTYPE UF 284726
Fontes:
Descrição original: Breure, Bram & Eskens, A.. (1981). Notes on and descriptions of Bulimulidae (Mollusca, Gastropoda), II. Zoologische Verhandelingen. 186. disponível online em https://www.researchgate.net/publication/254893681_Notes_on_and_descriptions_of_Bulimulidae_Mollusca_Gastropoda_II
Breure, Abraham S. H., 2009, New Orthalicidae (Mollusca, Gastropoda) from Venezuelan Guayana: unravelling secrets from the Lost World, Zootaxa 2065, pp. 25-50 : 40-41, disponível online em https://www.researchgate.net/publication/289641789_New_Orthalicidae_Mollusca_Gastropoda_From_Venezuelan_Guayana_Unravelling_Secrets_From_The_Lost_World
MolluscaBase: https://www.molluscabase.org/aphia.php?p=taxdetails&id=1367937