Hunyadiscus saurini Páll-Gergely, 2016

Páll-Gergely, Barna, 2018, Systematic revision of the Plectopylinae (Gastropoda, Pulmonata, Plectopylidae), European Journal of Taxonomy 455, pp. 1-114 : 69

Hunyadiscus saurini Páll-Gergely, 2016

Figs 31 A–B, 32A–B

Hunyadiscus saurini Páll-Gergely in Páll-Gergely et al. 2016: 11–13 , figs 3a, 4c, 5a–b, 11a.

Material examined

LAOS: 2 shells, Vientiane Province, Long Tieng 1 km E on road towards Sanasomboun, small ponor cave deposits at foot of limestone cliffs right side of the road, 19.098124° N, 102.938746° E, 978 m a.s.l., 24 Feb. 2017, J. Grego leg. (coll. JG, inventory no. L4419).

Remarks

This species was described based on empty shells, which were collected by Edmond Saurin in the 1960s. The locality names on the labels could not be exactly located on available maps. We speculated that Saurin’s “Pa Hia” may be Ban Namthong (19°3.2′ N, 103°17′ E) (Páll-Gergely et al. 2016). I have since had the chance to examine two shells recently collected from the above-mentioned site in Vientiane Province, Laos. This represents the first exact locality of this species, located ca 37 km east (in a straight line) from Pa Hia (see also Fig. 12 ).

Figures

Fig. 31. Shells and protoconchs of species of Hunyadiscus Páll-Gergely, 2016 and Naggsia Páll-Gergely & Muratov, 2016. A. Hunyadiscus saurini Páll-Gergely, 2016, holotype (MNHN IM-2000-24947). B. H. saurini, paratype (MNHN IM-2000-24949). C. Protoconch of H. tigrina sp. nov., holotype (UF 343843). D. Protoconch of H. tigrina sp. nov., paratype (UF 343817). E. Naggsia laomontana from Laos, Luang Praban Province, 20°03.48276′ N, 102°12.79912′ E, 364 m a.s.l., 13 Oct. 2006, K. Ohara leg. (coll. PGB). F. N. oligogyra sp. nov., holotype (UF 346781). Scale bar: A, C, E–F = 10 mm. Images: T. Deli (A, C, E–F) and B. Páll-Gergely (B, D).

Fig. 12. Distribution of plectopylid species in Thailand, Laos and Myanmar. Legends: circle = Chersaecia shanensis (Stoliczka, 1873); filled square = Chersaecia reversalis sp. nov.; empty square = Chersaecia dextrorsa (Benson, 1860); empty rhomb = Hunyadiscus tigrina sp. nov.; filled rhomb = Hunyadiscus saurini Páll-Gergely, 2016; triangle, top up = Plectopylis crassilabris sp. nov.; triangle, top down = Naggsia laomontana (L. Pfeiffer, 1862); empty triangle, top down = Plectopylis bensoni Gude, 1914.