An annotated type catalogue of seven genera of operculate land snails (Caenogastropoda, Cyclophoridae) in the Natural History Museum, London
Author
Sutcharit, Chirasak
Author
Ablett, Jonathan D.
Author
Panha, Somsak
text
ZooKeys
2019
842
1
65
http://dx.doi.org/10.3897/zookeys.842.29243
journal article
http://dx.doi.org/10.3897/zookeys.842.29243
1313-2970-842-1
3A4BB2800F484831AF4BC84D6FE5CDAE
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).
Remarks.
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.
Figure 11. A Possible syntype
Pterocyclos rupestris puriensis
B, C syntype of
Cyclotus pyrostoma
D, E syntype of
Cyclotus siamensis
F, G syntype of
Rhiostoma simplicilabre
H, I syntype of
Cyclotus spiniferus
J holotype of
Pterocyclos spiramentum
K, L syntype of
Cyclotus suluanus
.