spiramentum Godwin-Austen, 1915

Sutcharit, Chirasak, Ablett, Jonathan D. & Panha, Somsak, 2019, An annotated type catalogue of seven genera of operculate land snails (Caenogastropoda, Cyclophoridae) in the Natural History Museum, London, ZooKeys 842, pp. 1-65: 1

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spiramentum Godwin-Austen, 1915


83. spiramentum Godwin-Austen, 1915   Fig. 11J

Pterocyclos spiramentum   Godwin-Austen, 1915: 498, 499, pl. 40, figs 4, 4a, 4b.

Current generic position.

Pterocyclos   Benson, 1832

Type locality.

Abor Hills [region in Arunachal Pradesh State, India].

Type material.

Holotype NHMUK 1903.7.1.3082 (Fig. 11J).


The original description clearly stated that this taxon was described based on only one specimen. The NHM collections contain a lot consisting of a single specimen with a label in Godwin-Austen’s handwriting stating “Type”. This specimen matches well with the illustrations and measurements given in the original description, and so we consider this specimen as the holotype fixed by monotypy.