Pl. 1, fig. J
Hutton, 1884. New Zealand Journal of Science, 2: 175.
Type material. Possible syntypes, CMNZ M360 (1); NMNZ M.125540 [ex H. Suter colln.] (2) (dry shells). Hutton (1885c: 55) noted that he had “two specimens only” of this species, which indicates that at least one of the shells in the two lots listed here is not primary type material.
Label details. CMNZ M360 —‘17. Limnaea leptosoma Hutton,Wellington’,pillbox label in Hutton’s handwriting; NMNZ M.125540—‘ Limnaea leptosoma Hutton, Syntype, Wellington, Hu.’ in H. Suter’s handwriting.
Type locality. ‘Wellington’ (Hutton 1884h: 175, 1885c: 55).
Previous illustrations of type material. Hutton (1885c: pl. 12, fig. 3).
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: 192) and Dell (1956: 76). As noted in the preceding species entry, the latter taxon has a wide distribution in the North Island and South Island and is probably endemic to New Zealand.
Current taxonomy. A junior synonym of Austropeplea tomentosa (Pfeiffer, 1855) — Hubendick (1951 —in Lymnaea), Dell (1956: 76 —in Simlimnea Iredale, 1943).