Cyclophorus amoenus (Pfeiffer, 1854)

Nantarat, Nattawadee, Sutcharit, Chirasak, Tongkerd, Piyoros, Ablett, Jonathan, Naggs, Fred & Panha, Somsak, 2014, An annotated catalogue of type specimens of the land snail genus Cyclophorus Monfort, 1810 (Caenogastropoda, Cyclophoridae) in the Natural History Museum, London, ZooKeys 411, pp. 1-56 : 4-5

Cyclophorus amoenus (Pfeiffer, 1854)

Cyclostoma (Cyclophorus) amoenum Pfeiffer, 1854b [1852]: 62. Pfeiffer 1854a: 346, pl. 45, figs 11, 12.

Cyclophorus amoenus - Reeve, 1861: sp. 40. Kobelt 1902: 97.

Type locality.

unknown.

Type material.

Lectotype (design. n.), NHMUK 20130113/1 ( Fig. 3A; D =30.0 mm, H=23.5 mm, W= 4½), paralectotype NHMUK 20130113/2 (1 shell; Fig. 3B; D =26.0 mm, H=22.5 mm, W= 4½).

Remarks.

This species was described based on specimens from the Cuming collection. In the original description only one set of specimen measurements was given. In 1854, Pfeiffer (1854a: 346, pl. 45, figs 11, 12) re-published the description and illustrated a single specimen from the Cuming collection. There are two specimens from the Cuming collection with an original label in Pfeiffer’s handwriting stating the species name, and a subsequent label stating “Type”. The figured specimen in Pfeiffer (1854a) can be recognized by the varix on the last whorl, and is designated here as the lectotype.

Figures

Figure 3. Types of Cyclophorus species. A, B Cyclophorus amoenus (Pfeiffer, 1854) A lectotype NHMUK 20130113 / 1, and B paralectotype NHMUK 20130113 / 2 C, D Cyclophorus appendiculatus (Pfeiffer, 1854) C lectotype NHMUK 20130079 / 1, and D paralectotype NHMUK 20130079 / 2 - 3 E, F Cyclophorus aquilus (Sowerby I, 1843) E lectotype NHMUK 20110225 / 1, and F paralectotype NHMUK 2011225 / 2 - 3.