Potamopyrgus pupoides 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 : 14

Potamopyrgus pupoides Hutton, 1882

Pl. 1, fig. F

Hutton, 1882. New Zealand Journal of Science, 1: 41.

Type material. Lectotype (designated by Winterbourn 1970: 286), CMNZ M9930 [ex ZS 250a], and paralectotypes, CMNZ M334 (40), CMNZ M9931 [ex ZS 250a] (5), (dry shells).

Label details. CMNZ M334 —‘ Potamopygus pupoides Hutton, R. Heathcote , Christcurch’, pillbox label in Hutton’s handwriting ; CMNZ M9930 and M9931—‘ Type, Potamopygus spelaeus pupoides Hutton , loc. Heathcote River, ZS 250a’ .

Type locality. ‘brackish water of the Heathcote estuary’ ( Hutton 1882b: 41); ‘Estuary of the Avon and Heathcote rivers, in brackish water’ ( Hutton 1882e: 146).

Previous illustrations of type material. Hutton (1882e: pl. 1, fig. D, H).

Remarks. Hutton submitted a description of this species to the Transactions and Proceedings of the New Zealand Institute issue for 1881, but publication was delayed until May 1882 ( Hutton 1882e: 146), and was preempted by a brief description in an account of ‘Recent Papers on Mollusca (by Prof. F. W. Hutton)’ in the New Zealand Journal of Science issue of February 1882 ( Hutton 1882b: 41). Potamopyrgus pupoides Hutton, 1882 is the type species of Halopyrgus Haase, 2008 . It inhabits brackish water only ( Hutton 1882e: 146, Haase 2008: 108).

Current taxonomy. Halopyrgus pupoides (Hutton, 1882) — Haase (2008: 108).

Distribution. New Zealand; brackish water in estuaries around New Zealand ( Haase 2008: 109).