Stegodera (Trihelix) helleri Rolle, 1911

Hwang, Chung-Chi, 2014, Annotated type catalogue of land snails collected from Taiwan (Formosa) in the Natural History Museum, London, ZooKeys 428, pp. 1-28 : 18-19

Taxon classification Animalia Stylommatophora Camaenidae

Syn. Stegodera (Trihelix) helleri Rolle, 1911

Moellendorffia (Trihelix) hiraseana Pilsbry, 1905: 66-67, pl. 2 fig. 4-6.

Stegodera (Trihelix) helleri Rolle, 1911: 31-32.

Type locality.

Toyenmongai auf Formosa [Dong-yuan-men-jie, Tainan = central area of modern-day Tainan City] (Rolle?)

Material examined.

Lectotype of Stegodera helleri . Toyenmongai, Formosa, coll. Rolle, 1910 (SMF 7404), designated as holotype by Zilch (1966a, fig. 57), see remarks below.

Paralectotypes of Stegodera helleri . (SMF, 4 shells) ( Zilch 1966a).

Possible paralectotypes of Stegodera helleri . Toyenmongai, Formosa, coll. Rolle, “1/2/11”, from collection of V.W. MacAndrew, no. 1563 (NHMUK 20040594, 4 shells), 6.4-6.9 × 15.9-17.4mm, whorls 4.75.

Remarks.

No holotype was originally fixed by Rolle (1911). Zilch (1966a) considered a specimen in SMF as the holotype, which here is accepted as a subsequent lectotype designation, and thus all other specimens from Rolle’s original lot receive the status of paralectotypes under Art. 74.6, ICZN (1999).