Sinployea mangamuka
Sinployea mangamuka was named in 2025 by Frank Climo, Karin Mahlfeld and David Roscoe, in their revision of the genus Sinployea. It belongs to the Charopidae: mostly tiny, finely ribbed snails of forest litter, and the largest family of New Zealand land snails.
| Family | Charopidae |
| Authority | Climo, Mahlfeld & Roscoe, 2025 |
| Threat status | Proposed in 2025, see Conservation below |
| Shell | Shell small, depressed subglobose, thin, and fragile, 2.3 mm wide and 1.28 mm high at three whorls, moderately coarsely ribbed and moderately loosely coiled for the group. |
Distribution
New Zealand, Northland, Mangamuka Gorge and Pouerua (12 km SE of Kaikohe); Hauraki Gulf, Little Barrier Island.
Habitat
Subtropical mixed podocarp-broadleaf forest.
The name
After Mangamuka, Northland.
Conservation
The three localities this species is known from are flanked by allopatric species of Sinployea (Fig. 16). The Mangamuka Gorge locality is ~ 55 km from Pouerua Bush and ~ 200 km from Little Barrier Island. The last collection of the species was in 1987 at Pouerua Bush. Based on the collection data, it seems likely that S. mangamuka is a central Northland endemic wedged between the distributions of S. waipoua and snails that are likely to be conspecific with S. solemi. The 2010 NZTCS assessment did not rank S. mangamuka. We suggest a new listing of ‘At Risk’, ‘Naturally Uncommon’, with the qualifiers ‘Data Poor: Population Size and Trend’ and ‘Biologically Sparse’.
Sources
- Described in: Mahlfeld, K., Climo, F. & Roscoe, D. (2025). Systematics, conservation status, and biogeography of 16 new species of Sinployea Solem, 1983 (Gastropoda: Charopidae) from New Zealand. Zoological Journal of the Linnean Society 204(1). Publication details
- Treatment on Plazi (CC0). Distribution, habitat, name and conservation text are quoted from it.
This record was compiled from published, public data. A full factsheet for this species has not been written yet.