Patula sylvia Hutton, 1883

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 : 35

publication ID	https://doi.org/ 10.11646/zootaxa.4865.1.1
publication LSID	lsid:zoobank.org:pub:039515F7-5688-400B-A5B6-CFF8618C248F
DOI	https://doi.org/10.5281/zenodo.4428500
persistent identifier	https://treatment.plazi.org/id/AD3987E6-FA10-FFF3-50B6-FF74FD01BA37
treatment provided by	Plazi
scientific name	Patula sylvia Hutton, 1883
status

Treatment

Pl. 4, fig. D

Hutton, 1883 . The New Zealand Journal of Science, 1: 476.

Type material. Lectotype (designated here), CMNZ M1363.2 View Materials , and paralectotypes (2), CMNZ M1363.1 View Materials , M1363.3 View Materials (dry shells).

Label details. ‘26. Patula sylvia Hutton, Bealey , Type’, pillbox label in Hutton’s handwriting.

Type locality. ‘Bealey (Haast)’ ( Hutton 1883g: 475 ); ‘Bealey (Dr. v. Haast), under logs in the beech forests’ ( Hutton 1884b: 175 ).

Remarks. Hutton submitted a description of Patula sylvia to the Transactions and Proceedings of the New Zealand Institute issue for 1883, but publication was delayed until May 1884 ( Hutton 1884b: 175 ), and was preempted by a brief description in an account of a meeting of the Philosophical Institute of Canterbury ( Hutton 1883g: 476 ). A shell from the type series (lectotype) is illustrated here for the first time in pl. 4, fig. D. There has been confusion over the taxonomic status of this species: it has been incorrectly listed as a junior synonym of Helix tau Pfeiffer, 1861 (e.g., by Hedley & Suter 1893: 657, Suter 1894b: 262); and as a junior synonym of Helix buccinella Reeve, 1852 (e.g., by Suter 1913: 714, Climo 1969: 208, Powell 1979: 307). Examination of type material indicates that Patula sylvia Hutton, 1883 and Helix buccinella Reeve, 1852 are separate species, and that Patula mutabilis Suter, 1891 is a subjective junior synonym of P. sylvia Hutton, 1883 .

Current taxonomy. Cavellia sylvia (Hutton, 1883) — Mayhill (1985: 4), Mason (1988: 90), Spencer et al. (2009: 215).

Distribution. New Zealand; widespread in the eastern and southern South Island, including islands in Marlborough Sounds and Fiordland, and on Rakiura/Stewart Island and Whenua Hou/Codfish Island ( Suter 1913: 720 —as Endodonta mutabilis ; Climo 1969: 219, fig. 19C—as Charopa mutabilis ; Powell 1979: 307 —as C. mutabilis ; AIM and NMNZ collection records).