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Bullinularia maxima

Bullinularia maxima – from Bobrov and Mazei, 2020

Bullinularia maxima Bobrov et Mazei, 2020

Diagnosis: Shell brown, opaque, elliptical in ventral view; ventral surface is covered by external particles (xenosomes); aperture an eight-shaped slit; upper lip projecting in a large concaved outgrowth that covers the apertural funnel and is visible in the ventral view.

Dimensions: Shell width 205–220 μm; shell length 160–170 μm; aperture width 100–120 μm.

Ecology and distribution: Soil. Type locality: Yalong Bay Tropical Paradise Forest Park located 25 kilometers southeast from the city Sanya, Hainan, China.

Remarks: This species fits well in size (shell width ca. 200 μm) and elliptical shell shape with the first description of Bullinularia indica and clearly different from smaller form, which is already named here as B. indica following an established tradition. Bobrov et al. (2020) suggest to rename this morphotype despite the priority of first description name to keep stability in the field and to legalize the differences between two forms of Bullinularia indica stated already in 1911 by Eugene Penard.

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