minima (Godwin-Austen, 1915)

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

67. minima (Godwin-Austen, 1915) Fig. 9B, C

Spiraculum minimum Godwin-Austen, 1915: 501, 502, pl. 40, figs 2, 2 a–c.

Pearsonia minima - Gude 1921: 121, 122.

Current generic position.

Pearsonia Kobelt, 1902

Type locality.

Jeku, Abor Hills and Sibbum, Abor Hills [Doje Jeku and Sibbum Villages, west Siang District, Arunachal Pradesh State, India].

Type material.

Lectotype (design. n.) NHMUK 1903.7.1.3145/1 (Fig. 9B) from Sibbum, Abor Hills, paralectotypes NHMUK 1903.7.1.3145/2-3 (2 shells; Fig. 9C), NHMUK 1903.7.1.3147 from Sibbum, Abor Hills (2 shells).

Remarks.

Godwin-Austen (1915) clearly states that this taxon was based on at least four lots of specimens from two different localities. The original description included illustrations and one set of measurements. In addition, Godwin-Austen (1915) stated that two lots were housed in the Indian Museum, and the other two lots were housed in the NHM. The specimen lot NHMUK 1903.7.1.3145 consisting of three shells has a label in Godwin-Austen’s handwriting stating “Typical”, and gives the collection locality “Sibbum”, and one of the specimens closely matches the original description. This specimen is here designated as the lectotype to stabilise the name.

The paralectotypes are the two remianing shells, NHMUK 1903.7.1.3145/2-3, from the same lot as the lectotype, the two specimens in lot NHMUK 1903.7.1.3147, and the remianing two specimen lots (nos. 6142 and 6143) housed in the Zoological Survey of India (formerly the Indian Museum) as indicated by the author. Following this lectotype designation, the type locality of this species is restricted to "Sibbum, Abor Hills" ( ICZN 1999: Art. 76.2).