Paracrostoma huberi Thach, 2018

Bolotov, Ivan N., Konopleva, Ekaterina S., Vikhrev, Ilya V., Gofarov, Mikhail Y., Lopes-Lima, Manuel, Bogan, Arthur E., Lunn, Zau, Chan, Nyein, Win, Than, Aksenova, Olga V., Tomilova, Alena A., Tanmuangpak, Kitti, Tumpeesuwan, Sakboworn & Kondakov, Alexander V., 2021, Nominal taxa of freshwater Mollusca from Southeast Asia described by Dr. Nguyen N. Thach: A brief overview with new synonyms and fixation of a publication date, Ecologica Montenegrina 41 (1), pp. 73-83 : 82

Paracrostoma huberi Thach, 2018 [taxon inquirendum]

= Paracrostoma huberi Thach (2018) : 23–24; pl. 15, figs 168–172.

Holotype: MNHN-IM-2000-34038 ( Muséum National d’Histoire Naturelle , Paris, France).

Type locality: “ 300 km north of Rangon [= Yangon], Myanmar ” [it might be somewhere around Naypyidaw (the capital of the country), approx. 19.75°N, 96.11°E, Sittaung River basin] .

Comments: The type locality of this nominal species is uncertain. It was also the case of some land snail taxa introduced by N. N. Thach (see Páll- Gergely et al. 2020). The genus Paracrostoma is rather poorly known (Köhler and Glaubrecht 2007). This nominal species seems to be a synonym of Paracrostoma huegelii (Philippi, 1843) , because the diagnostic features mentioned in the original description are within the range of conchological variability of the latter species. However, taxa in this genus are almost indistinguishable conchologically (Köhler and Glaubrecht 2007), and we prefer to consider Paracrostoma huberi as taxon inquirendum until the separate species-level status of this taxon is confirmed on the basis of more convincing morphological and molecular evidences.