Laotia christahemmenae phami, Páll-Gergely & Hunyadi, 2021
publication ID |
https://doi.org/ 10.26107/RBZ-2021-0010 |
publication LSID |
lsid:zoobank.org:pub:DD656B82-2FF6-444F-B259-827EDC7F3715 |
persistent identifier |
https://treatment.plazi.org/id/03B2EC0B-FFC7-FFAA-FCC9-FD9AFBC8B8A9 |
treatment provided by |
Diego |
scientific name |
Laotia christahemmenae phami |
status |
subsp. nov. |
Laotia christahemmenae phami View in CoL , new subspecies
( Fig. 1B–D View Fig )
Type material. Holotype (VNMN-Z-Inv.000218, D: 5.1 mm, H: 3.5 mm), Vietnam, SƠn La Province, Thu ận Châu District, Co M ạ, Pha Khuȏng , rock wall above Chuyên Nga Motel , 1,270 m a.s.l., 21°21.385′N, 103°31.175′E (locality code: 2020/17), coll. A. Hunyadi, H. V. Luong, J.U. Otani & S. V. Pham, 8 February 2020. GoogleMaps
Paratypes. 1 shell (VNMN-Z-Inv.000219), same data as holotype GoogleMaps ; 9 shells (coll. HA), same data as holotype GoogleMaps ; 1 paratype with operculum (photographed), (coll. HA), same data as holotype GoogleMaps ; 5 adult dead shells (coll. JUO), same data as holotype GoogleMaps ; 2 adult dead shells (coll. JUO), Vietnam, SƠn La Province, Thu ận Châu District, Co M ạ, Pha Khuȏng , along rd. 108, 1,260 m a.s.l., 21°21.36′N, 103°31.4526′E (locality code: 20200208B), coll. A. Hunyadi, H. V. Luong, J.U. Otani & S. V. Pham, 8 February 2020 GoogleMaps .
Additional material. 1 juvenile shell (coll. HA), same data as holotype GoogleMaps .
Differential diagnosis. This subspecies differs from the nominotypical subspecies in the more elevated spire and the narrower umbilicus (umbilicus width ca. one fifth of the small shell diameter in the new subspecies, whereas it is ca. one fourth in the nominotypical subspecies).
Measurements (in mm). D: 4.9–5.3, H: 3.5 (smallest and largest shells measured).
Operculum. Outer side: funnel shaped with a single, multispiral calcareous lamina bent towards the nucleus. Inner side: glossy, without central nipple, with shallow, wide spiral grooves corresponding with the position of the elevated lamina of the outer side. This is the first report of an operculum in Laotia .
Etymology. This new species is dedicated to and named after our much-valued friend, Sáng Văn Phạm, who helped during field collection.
Distribution. Laotia christahemmenae phami , new subspecies, is known from two nearby occurring localities in SƠn La Province, Vietnam ( Fig. 2 View Fig ). Practically a single population is known.
RAFFLES BULLETIN OF ZOOLOGY 2021
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Royal British Columbia Museum - Herbarium |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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