Pseudoiglica kameniari, Grego, Jozef, 2018

Grego, Jozef, 2018, First record of subterranean rissoidean gastropod assemblages in Southeast Asia (Mollusca, Gastropoda, Pomatiopsidae), Subterranean Biology 25, pp. 9-34 : 15

publication ID	https://dx.doi.org/10.3897/subtbiol.25.23463
publication LSID	lsid:zoobank.org:pub:9F789679-CD74-4D54-A7F2-B0087E154571
persistent identifier	https://treatment.plazi.org/id/A529966B-65AD-404D-BCC6-552FF9832934
taxon LSID	lsid:zoobank.org:act:A529966B-65AD-404D-BCC6-552FF9832934
treatment provided by	Subterranean Biology by Pensoft
scientific name	Pseudoiglica kameniari
status	sp. n.

Treatment

Pseudoiglica kameniari View in CoL sp. n. Figures 9-10

Type locality.

Laos; Khammouane Province, Ban Na village 20 km NNE of Thakhek, Tham Khon Dôn Cave 17°33.82'N; 104°52.30'E, 161 m a.s.l., Earthquake Dome 3 km from the south entrance, sand sediments on bank of cave river (Fig. 2B).

Type material.

Holotype: type locality: J. Grego and M. Olšavský leg. 11-12 February 2017 (NHMUK 20180002). Paratypes: type locality (NHMUK 20180017 - 1 specimen; HNHM 102770 - 1 specimen; OSUM 42383 -1 specimen; coll. Grego F0873 - 11 specimens).

Measurements.

Holotype: H 2.85 mm; W 1.21 mm; BW 0.85 mm; BH 1.50 mm; AH 0.95 mm; AW 0.75 mm; H/W 2.36; AH/AW 1.27; W/BW 1.42; H/BH 1.60; H/AH 3.00; W/AW 1.61.

Diagnosis.

Similar to syntopic Pseudoiglica pseudoiglica sp. n., from which it differs by its smaller, more robust shell with a less prominent umbilicus and more elongated aperture situated more towards the columellar axis. It differs from the syntopic P. olsavskyi sp. n. by its larger and more conical shell shape and proportionally larger aperture. It differs from P. phonsavanica by its less robust shell, less prominent body whorl and the different shape of the aperture.

Description.

The milky yellowish shell has five convex whorls with a deep suture and a blunt apex. The shell has a smooth and shiny surface and is elongated-conical. Umbilicus is slit-like. In frontal view, the aperture aligns with the shell periphery outline. Aperture is ovoid, attached to the body whorl by a very weak furrow. The peristome margin is a blunt callous, equally thick all the way around and slightly reflexed outwards. The outer lip is weakly sinuous in lateral profile.

Etymology.

Named after Ondrej Kameniar, young speleologist and biologist, friend from Ľubochňa, Slovakia, who actively participated in our 2017 field trip to Laos.

Distribution.

Only known from the type locality and nearby sites in Tham Khon Dôn Cave as well as from the related source of Nam Dôn River.

Ecology.

The same as Pseudoiglica pseudoiglica sp. n.