Amphidoxa jacquenetta Hutton 1883
Creators: name: Brook, Fred J.
name: Kennedy, Martyn
name: King, Tania M.
name: Ridden, Johnathon
name: Shaw, Matthew D.
name: Spencer, Hamish G.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Stylommatophora
Charopidae
Amphidoxa
Amphidoxa jacquenetta

description: Amphidoxa jacquenetta Hutton, 1883
Pl. 3, fig. B
Hutton, 1883. New Zealand Journal of Science, 1: 476.
Type material. In Canterbury Museum, Christchurch, according to Hutton (1898 – 1900: 7) and Suter (1913: 650), overlooked and reported as missing by Freeman et al. (1997: 36), but one damaged specimen rediscovered in 2017. Lectotype (designated here), CMNZ M277 (dry shell). The molluscan collection at CMNZ has radula fragments mounted on a glass slide with the label details ‘ Amphidoxa jacquenetta, Greymouth, XVI p. 179’, in Hutton’s handwriting (i.e., CMNZ 2017.17.15), which is probably primary type material (see descriptions of radula and jaw by Hutton 1884b: 180).
Label details. ‘36. Amphidoxa jacquenetta Hutton, Greymouth’, pillbox label in Hutton’s handwriting.
CMNZ molluscan catalogue details. M277—‘ Flammulina jacquenetta Hutton, Greymouth (1 specimen) (old No. 36) ’.
Type locality. ‘Greymouth (R. Helms)’ (Hutton 1883g: 476, 1884b: 180).
Previous illustrations of type material. Radula teeth illustrated by Hutton (1884b: pl. 10, fig. C) probably from type material; Pilsbry (1892 [in 1892–1893]: 76, pl. 22, figs. 70–72—‘drawings of Prof. Hutton’s type, furnished by Mr. Suter’); Suter (1915: pl. 9, figs. 11, a, b—possibly the same shell as illustrated by Pilsbry).
Remarks. Based on one or more specimens collected from Greymouth by Richard Helms. Hutton submitted a description of this species to the Transactions and Proceedings of the New Zealand Institute issue for 1883, but publication was delayed until May 1884 (Hutton 1884b: 179), and was pre-empted by a brief description in an account of a meeting of the Philosophical Institute of Canterbury (Hutton 1883g: 476). From Pilsbry (1893 [in 1893–1895]: 18) and Hedley & Suter (1893: 643) onwards, jacquenetta has generally been assigned to Flammulina Martens, 1873 at subgenus or genus level. However, whereas the protoconch of Flammulina zebra (Le Guillou, 1842), the type species of this genus, is smooth and lacking in sculpture, that of jacquenetta has a distinctive sculpture of diagonally reticulated riblets with beaded intersections, which indicates that these two species are probably not congeneric. Recorded from Greymouth only by Hutton (1884c: 198), Suter (1913: 679) and Powell (1979: 314), but examination of material in museum collections indicates that jacquenetta has a sparse distribution in the northwestern South Island (below).
Current taxonomy. Flammulina jacquenetta (Hutton, 1883) — Hedley & Suter (1893: 643), Suter (1913: 678), Powell (1979: 314), Spencer et al. (2009: 215), but the genus level placement requires re-evaluation.
Distribution. New Zealand; northwestern South Island, between Whanganui Inlet and Greymouth (AIM and NMNZ collection records).
description: Published as part of 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, pp. 1-73 in Zootaxa 4865 (1) on pages 27-28, DOI: 10.11646/zootaxa.4865.1.1, http://zenodo.org/record/4428428