lychnus (Morelet, 1862)

Sutcharit, Chirasak, Ablett, Jonathan D. & Panha, Somsak, 2019, An annotated type catalogue of seven genera of operculate land snails (Caenogastropoda, Cyclophoridae) in the Natural History Museum, London, ZooKeys 842, pp. 1-65 : 1

61. lychnus (Morelet, 1862) Fig. 8E, F

Cyclostoma lychnus Morelet, 1862: 478. Breure et al. 2018: 334, figs 620, 621.

Myxostoma lychnus - Kobelt 1902: 86.

Current generic position.

Myxostoma Troschel, 1847

Type locality.

In insula Poulo-Condor [Con Son Island, Ba Ria–Vung Tau Province, Vietnam].

Type material.

Lectotype NHMUK 1893.2.4.501 (Fig. 8E), paralectotype NHMUK 1893.2.4.502-503 (2 shells; Fig. 8F).

Remarks.

The original description by Morelet (1862: 478) did not give an illustration of the species, although a set of shell dimensions was provided. The NHM register show that a lot of three specimens was purchased from Fulton from the A Morelet collection. The original label states the taxon name and gives the collection locality as "C. breve Martyn–lychnus Moret. I. Pulo Condor". The words "All too small for types" was added at a later date, however, our measurements of all specimens are close to those shell dimensions given in the original description (width 36 mm, height 25 mm). The specimen that matches well with the shell dimensions given in the original description is here designated as the lectotype to stablise the name.