First record of subterranean rissoidean gastropod assemblages in Southeast Asia (Mollusca, Gastropoda, Pomatiopsidae)

By

Grego, Jozef

Type

Article

Date of Publication

2018

Original Publication

Subterranean Biology

Volume

25

Pages

9-34

Subjects

Bolikhamsay , cave , Khammouane , Laos , Spring , stygobiont , Troglobiont , Xianghouan

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers

Identifiers

DOI: https://doi.org/10.3897/subtbiol.25.23463

 

Abstract

In February 2017 we investigated several caves and karstic springs in Laos for the presence of underground freshwater gastropod species. We report previously unrecorded freshwater gastropod assemblages in the largest cave in Laos, Tham Khon Dôn, and in the third largest cave, Pha Soung, in Khammouane Province, with single finds in Na Li Cave (Khammouane Province), an unnamed cave near Vieng Thong (Bolikhamsay Province) and a small karst spring near Phonsavan (Xianghouan Province). All 15 species recorded and described herein are new to science. Four species are assigned to the new genusPseudoiglica:P. pseudoiglicasp. n.,P. olsavskyisp. n.,P. kameniarisp. n., andP. phonsavanicasp. n.Three species are assigned to the new genusThamkhondonia:T. mouretisp. n.,T. vacquieisp. n., andT. smidaisp. n.Eight species are assigned to the genusTriculaBenson, 1843:T. valenasisp. n.,T. davisisp. n.,T. spelaeasp. n.,T. lenahanisp. n.,T. reischuetzorumsp. n.,T. phasoungensissp. n.,T. bannaensissp. n., andT. viengthongensissp. n.