Limnaea ampulla Hutton, 1884

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 : 15-16

Limnaea ampulla Hutton, 1884

Pl. 1, fig. H

Hutton, 1884 . New Zealand Journal of Science, 2: 175.

Type material. Syntypes (12), NMNZ M.125545 [ex H. Suter colln.] (dry shells). The molluscan collection at CMNZ has a jaw and radula fragments mounted on a glass slide with the label details ‘ Lymnaea ampulla, Arthurs Pass, XVII p. 55’, in Hutton’s handwriting ( CMNZ 2017.17.151), which are probably primary type material (see description of radula by Hutton 1885c: 55 ).

Label details. NMNZ M.125545—‘ Amphipeplea ampulla Hutt. , co-type, Lake at Arthur’s Pass, Hutt.’, in H. Suter’s handwriting.

Type locality. ‘Arthur’s Pass’ ( Hutton 1884h: 175 ); ‘Arthur’s Pass (Mr. Dominick Brown and Mr. Cheeseman); Lake Lyndon (Mr. J. D. Enys)’ ( Hutton 1885c: 55 ).

Previous illustrations of type material. Hutton (1885c: pl. xii, figs. 2, 8—shell and radula), Dell (1956: figs. 29–31).

Remarks. Hutton submitted a description of this species to the Transactions and Proceedings of the New Zealand Institute issue for 1884, but publication was delayed until May 1885 ( Hutton 1885c: 55 ), and was preempted by a brief description in an account of a meeting of the Philosophical Institute of Canterbury ( Hutton 1884h: 175 ). Treated as a junior synonym of Succinea tomentosa Pfeiffer, 1855 , by Hubendick (1951: 180) and Dell (1956: 76). The latter taxon, which was described from material collected in New Zealand, was transferred to Austropeplea Cotton, 1942 by Smith (1992: 257). As presently interpreted A. tomentosa has a wide but patchy distribution in the North and South Islands, with records from Northland to Otago, in seepages, swamps, small bodies of standing water, and less frequently in lakes and running waters ( Dell 1956: 78; Pullan et al. 1972: figs. 1a, 1b). It has also been recorded from southeastern Australia (e.g., Hubendick 1951: 170, fig. 361; Boray & McMichael 1961; Smith 1992: 257; Puslednik et al. 2009: fig. 1a), but molecular studies indicate that the New Zealand populations of A. tomentosa form a distinct endemic lineage that is not conspecific with any of the Australian populations previously attributed to this taxon ( Puslednik et al. 2009).

Current taxonomy. A junior synonym of Austropeplea tomentosa ( Pfeiffer, 1855) — Hubendick (1951: 180 — in Lymnaea ), Dell (1956: 76 —in Simlimnea Iredale, 1943 ), Boray & McMichael (1961: 159 —in Lymnaea ).