Flammulina (Allodiscus) chion Sykes, 1896

Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 32-33

Flammulina (Allodiscus) chion Sykes, 1896

Pl. 2, fig. E

Sykes, 1896. Proceedings of the Malacological Society of London, 2: 107, text fig.

Type material: Syntypes, NHMUK 1915.1 .4.129 (1), NHMUK 1896.2.29.56–58 (4), NMNZ M.125083 (1) (dry shell material).

Label details: NHMUK 1915.1 .4.129, ‘ Inglewood, N. Island, N.Z.’ ‘figd. type 1896 P. Mal. Soc. II’ ; NHMUK 1896.2.29.56–58, ‘Taranaki, North Isla , New Zealand’ ; NMNZ M.125083, ‘near Inglewood, H.B. Preston’ .

Type locality: ‘ Near Inglewood, Taranaki, North Island’ ( Sykes 1896: 107) .

Previous illustrations of type material: Sykes (1896: 107, text figure).

Remarks: The type material of Flammulina (Allodiscus) chion was collected by the British conchologist Hugh Preston, during a trip to New Zealand in the late 1800s. Some early records of Helix venulata from New Zealand were based on misidentifications of Flammulina (Allodiscus) chion Sykes, 1896 , according to synonymies of Marshall & Barker (2008: 111).

Current Taxonomy: Listed as Allodiscus chion ( Sykes, 1896) by Suter (1913b: 638), Powell (1979: 319), Marshall & Barker (2008: 111) and Spencer et al. (2009: 215), but preliminary results of a phylogenetic study (M. Kennedy & F. Brook unpub. data) indicate that the assignment to Allodiscus Pilsbry, 1892 requires re-evaluation.

Distribution: New Zealand; southwestern North Island, and northwestern South Island ( Marshall & Barker 2008).