Corresponding author: Barna Páll-Gergely (
Academic editor: Frank Köhler
Páll-Gergely B, Hunyadi A, Asami T (2015) A new Chinese species of
The family
Living
East Asia is inhabited by two recent strobilopsid genera:
The nomenclature for the armature follows that of
China, Guangxi (广西), Hechi Shi (河池市), Tiane Xian (天峨県), Qimu Xiang (豈暮郷), road junction toward Lahaoyan (拉号岩), cliff overlooking a memorial, 600 m,
SEM images of
Drawing showing the lamellae and folds of
A small
Shell small, light brown (only one shell in type material had original colour); trochiform, rather domed above, almost flat ventrally (umbilical side), periphery rounded, very slightly keeled, suture rather deep; 4.75 (n = 3) slowly expanding whorls, protoconch approximately 1.5 whorls; virtually smooth but with weak microscopic pits arranged in irregular radial lines; teleoconch irregularly ribbed; ribs strong dorsally, very weak ventrally (except for inside the umbilicus); spiral structure entirely lacking; umbilicus narrow; inner margin of the whorls exposed in umbilicus irregularly crenulated; aperture semilunar and oblique; peristome slightly thickened and slightly reflexed; parietal callus weak; parietal and infraparietal lamellae well-developed, although the infraparietal does not extend to the peristome; a low interparietal lamella deeply situated, not visible from aperture; three long basal folds and one short columellar lamella; basal folds visible in one specimen with a fresh, translucent shell only (Figs
Both
(in mm): D = 2.3–2.4, H = 1.45–1.5 (n = 2).
From Latin (‘humicolus’ = soil-dwelling), in reference to the fact that this species was found in soil samples.
No living specimens have been found. The empty shells were collected from a soil sample.
China, Guangxi (广西), Hechi Shi (河池市), Tiane Xian (天峨県), Qimu Xiang (豈暮郷), road junction toward Lahaoyan (拉号岩), cliff overlooking a memorial, 600 m,
Known from the type locality only.
No obvious teleoconch spiral lines are visible in the photo of the syntype of
The palatal fold, which is approximately a quarter whorl in length and runs just above the keel in the paratype of
Distribution of
We are very grateful to Anatoly Schileyko, Kurt Auffenberg and Zoltán Fehér for providing literature, Jonathan Ablett (NHM), Kazunori Hasegawa (NSMT) for providing access to museums collections, Roland Farkas for his help in producing the map, Kurt Auffenberg for fine-tuning the English and Yurika Ujiie for her help for handling label data. This study was supported by scholarships from Japan Student Services Organization and Mitsubishi Corporation to BPG and Grants-in-Aid for Scientific Research (KAKENHI) from Japan Society for the Promotion of Science to T.A.