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Four new species and two new records of Odostomiinae (Gastropoda: Pyramidellidae) from Brazil

机译:来自巴西的Odostomiinae(天麻:Pyramidellidae)的四个新物种和两个新记录

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Four new species of the pyramidellid Odostomiinae from Brazil are described: Chrysallida conifera sp. nov., characterized by a small and regularly conical shell with prominent nodules; Parthenina biumbilicata sp. nov., characterized by a deep and wide umbilicus and a regularly increasing aperture diameter at the protoconch, which bears a small circular umbilicus; Eulimastoma franklini sp. nov., which is very similar to Eulimastoma dydima (Verrill & Bush, 1900) but has a prominent helicoid protoconch; Eulimastoma exiguum sp. nov., similar to Eulimastoma weberi (Morrison, 1965) but without spiral ridges. Fargoa diantophila (Wells & Wells, 1961) and Chrysallida nioba (Dall & Bartsch, 1911) are reported from the southwestern Atlantic for the first time.
机译:描述了来自巴西的4种新的金字塔状Odostomiinae:Chrysallida conifera sp。十一月,特征是一个小的,规则的圆锥形外壳,带有明显的结节;爬山虎nov。,其特征是脐部较深且较宽,并且在原生螺孔处孔径有规律地增加,带有一个小的圆形脐部;富兰大戟nov。,与Eulimastoma dydima(Verrill&Bush,1900)非常相似,但有一个突出的螺旋状原生螺螺。鹅肠藻11月,类似于Eulimastoma weberi(Morrison,1965),但没有螺旋脊。 Fargoa diantophila(Wells&Wells,1961)和Chrysallida nioba(Dall&Bartsch,1911)首次报道自西南大西洋。

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