Mesembrinus purpuralabrum Breure, Mogollón & Vega‑Luz, 2024

CLASSE: GASTROPODA: TERRESTRE

FAMÍLIA: BULIMULIDAE

ESPÉCIE: Mesembrinus purpuralabrum Breure, Mogollón & Vega‑Luz, 2024

Tamanho médio: 30 mm

Ocorrência: Peru, Departamento de Amazonas

Localidade tipo: Peru, Departamento de Amazonas, Província Bongará, “Yambrasbamba area”

Altitude: 1800 – 2000 m

Habitat: vive em árvores e arbustos nas Yungas Peruanas

Nome original: Mesembrinus purpuralabrum Breure, Mogollón & Vega‑Luz, 2024

Etimologia: o nome da espécie deriva das palavras em Latim “purpura” (púrpura, “purple”) e “labrum” (lábio, “lip”), uma referência à zona púrpura ao redor do interior do perióstomo

Zoobank: urn:lsid:zoobank.org:act:63019F4A-5CAD-4CC1-A865-B5D0FBD9BE93

Descrição original:

(Breure et al., 2024): “shell up to 30.1 mm, 2.4 times as long as wide, imperforate, elongate, with almost straight sides, moderately solid. Colour whitish, with well-marked greyish to intensely dark-brown axial streaks and, in most specimens, with traces of small, interrupted spiral bands (two the last whorl, one on spire whorls); axial streaks greyish to intense dark brown in colour. Surface rather shiny. Protoconch with equally strong axial riblets and spiral striae forming a reticulate sculpture. Whorls 7.2, hardly convex; suture impressed. Aperture subovate, 1.6 times as long as wide, 0.4 times shell length. Peristome thin and simple, with pinkish or purple zone around inside the aperture; outer side of lip with a light-purple band. Columellar margin thin, receding. Parietal region with a thin, transparent callus.”

Fotos: (1,2) Breure et al. 2024: (A) HOLOTYPE NHMUK 20240088; (B) TOPOTYPES coleção particular Ricardo Vega-Luz (Espanha)

Fontes:

Descrição original: Breure, Abraham S.H.; Oroño, Eugenia Salas; Ablett, Jonathan D.; Vega-Luz, Ricardo & Mogollón Ávila, Valentín (2024):  Struggling with shells: Drymaeus Albers, 1850 and Mesembrinus Albers, 1850 species (Mollusca, Gastropoda, Bulimulidae) from Peru—an illustrated checklist and descriptions of new species. Journal of Conchology 45 (2), 2024. disponível online em https://conchsoc.org/jconch-45-2

MolluscaBase: https://www.molluscabase.org/aphia.php?p=taxdetails&id=1784500