Calybium massiei Morlet, 1892

Hoang, Ngoc Khac, Vu, Van Lien, Tran, Thi Thanh Binh, Nguyen, Thanh Son & Do, Duc Sang, 2025, Description of the second Calybium Morlet, 1892, and the first record of the genus for Vietnam’s terrestrial gastropod fauna (Neritimorpha: Helicinoidea: Helicinidae), Ruthenica, Russian Malacological Journal (New York) 35 (1), pp. 39-45 : 40-41

publication ID	https://doi.org/10.35885/ruthenica.2025.35(1).4
publication LSID	lsid:zoobank.org:pub:AA00690D-5041-4875-9665-9CB4C0B9988F
DOI	https://doi.org/10.5281/zenodo.14669634
persistent identifier	https://treatment.plazi.org/id/039F87BF-FFEF-FFA7-FCD7-F89713095AB7
treatment provided by	Felipe
scientific name	Calybium massiei Morlet, 1892
status

Treatment

Calybium massiei Morlet, 1892 View in CoL

( Figs 1 View FIG , 2B, 2D View FIG )

Calybium massiei Morlet, 1892: 316 View in CoL , 317; 1893: 327, pl. 8, figs 2, 2a–d.

Calybium masiei [sic] – Wagner, 1905: 369; Wagner, 1907: 15, 16, pl. 2, figs 8–11.

Calybium massiei View in CoL – Fischer, Dautzenberg, 1904: 45; Inkhavilay et al., 2019: 11 View Cited Treatment , fig. 3B.

Type locality. propè Kham-Keut in Provinciâ Laos dicta (around Khamkeut District, Bolikhamxay Province, Laos) [ Morlet, 1892] .

Diagnosis. Shell large-sized (up to 20.5 mm), depressed conical, and sharply keeled body whorl; parietal wall with six lamellae, of which the last two lamellae extending close to the callus and quite distinct from the first four lamellae; the end of the columella area strongly thickened, semicircular, and protruded from the surface shell.

Remarks. Specimens of this species were rediscovered in Tam Mungkorn Cave, Khamkeut District, Bolikhamxay Province [ Wagner, 1907; Inkhavilay et al., 2019].

Kingdom	Animalia
Phylum	Mollusca
Class	Gastropoda
Order	Cycloneritida
Family	Helicinidae
Genus	Calybium