Gerontia pantherina Hutton, 1882

Brook, Fred J., Kennedy, Martyn, King, Tania M., Ridden, Johnathon, Shaw, Matthew D. & Spencer, Hamish G., 2020, Catalogue of New Zealand land, freshwater and estuarine molluscan taxa named by Frederick Wollaston Hutton between 1879 and 1904, Zootaxa 4865 (1), pp. 1-73 : 32

Gerontia pantherina Hutton, 1882

Pl. 3, fig. G

Hutton, 1882. New Zealand Journal of Science, 1: 281.

Type material. Lectotype (designated here), CMNZ M12781 [ex M244], and paralectotypes, CMNZ M244 (3), CMNZ M1037 [ex ZS 662] (3), NMNZ M.275967 [ex H. Suter colln.] (4) (dry shells). The molluscan collection at CMNZ has radula fragments mounted on a glass slide with the label details ‘ Gerontia pantherina, Greymouth, XVI p. 166’, in Hutton’s handwriting (i.e., CMNZ 2017.17.49), which is probably primary type material (see description of radula by Hutton 1883d: 135).

Label details. CMNZ M244—‘39. Gerontia pantherina Hutton , Greymouth’, pillbox label in Hutton’s handwriting; NMNZ M.275967—‘94. Flammulina Gerontia pantherina, Hutt., Hel. [= R. Helms], Greymouth’, in H. Suter’s handwriting.

CMNZ molluscan catalogue details. M1037—‘ Gerontia pantherina Hutton, Greymouth (old number ZS 662)’.

Type locality. ‘Greymouth (R. Helms)’ ( Hutton 1882p: 281, 1883d: 135).

Previous illustrations of type material. Jaw and radula teeth illustrated by Hutton (1884b, pl. 9, fig. I, pl. 11, fig. R) and Pilsbry (1893 [in 1893–1895]: pl. 2, figs. 4, 5) probably from type material.

Remarks. Hutton submitted a description of Gerontia pantherina to the Transactions and Proceedings of the New Zealand Institute issue for 1882, but publication was delayed until May 1883 ( Hutton 1883d: 135), and was pre-empted by his brief description of Gerantia [sic] pantherina in an account of a meeting of the Philosophical Institute of Canterbury ( Hutton 1882p: 281). Descriptions by Hutton (1884b: 166, pl. 9, fig. I, pl. 11, fig. R) of a jaw and radula of pantherina were probably based on the putative type material in CMNZ 2017.17.49 mentioned above. Gerontia pantherina is the type species of Gerontia Hutton, 1882 , by monotypy.

Current taxonomy. Gerontia pantherina Hutton, 1882 — Hutton (1883d: 135), Suter (1913: 634), Powell (1979: 312), Spencer et al. (2009: 215).

Distribution. New Zealand; western South Island, predominantly in the northern part between Burnett Range and Ross, with scattered records south to Jackson Head ( Suter 1913: 635; Powell 1979: 312; AIM and NMNZ collection records).