Helix polymorpha d'Orbigny , 1835

Breure, Abraham S. H. & Ablett, Jonathan D., 2014, Annotated type catalogue of the Bulimulidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 392, pp. 1-367 : 127-128

Helix polymorpha d'Orbigny, 1835 Figs 67H-I , L48i

Helix polymorpha d’Orbigny 1835: 20.

Bulimus polymorphus ; d’Orbigny 1837 [1834-1847]: 289, pl. 41 figs 1-5 [19 June 1837; text 6 May 1838]; Gray 1854: 18.

Type locality.

"republica Peruviana".

Label.

"le Pérou”, in d’Orbigny’s handwriting.

Dimensions.

"Longit. 33 millim., latit. a 11 ad 12 millim." (see remarks); figured specimen herein H 22.8, D 11.6, W 5.6.

Type material.

NHMUK 1854.12.4.199, lectotype and one paralectotype, Fontaine leg. ( d’Orbigny coll.).

Remarks.

d’Orbigny (1835) recognized two varieties, "var. A. brevis " and "var. B. elongata ", without further description. The publication date of his paper is not known and therefore has to be dated on 31 December 1835 (Art. 21.3.2 ICZN). In d’Orbigny (1838 [1834-1847]) these varieties are mentioned simply as ”A” and ”B”; he corrected the measurements to "Long. 23 millim.; lat. 10 ad 13 millim.". The specimen corresponding to d’Orbigny 1837 [1834-1847]: pl. 41 figs 3-4 (= var. B) is here selected as lectotype (design. n.). The other specimen (= var. A) corresponds to his pl. 41 fig. 1. Both specimens are conspecific. d’Orbigny’s taxon was considered a junior subjective synonym of Bulinus bicolor Sowerby I by previous authors ( Weyrauch 1967a: 385, Richardson 1995: 348); Weyrauch considered Sowerby’s taxon to be published in 1834, Richardson gave 1835. This taxon was published in Proceedings of the Zoological Society of London 4 (1834), p. 141. According to Duncan (1937:78) the publication date is 3 April 1835 and d’Orbigny’s name is thus the junior synonym of Bulinus bicolor Sowerby I, 1835.

Current systematic position.

Bulimulidae , Kuschelenia (Kuschelenia) bicolor (Sowerby I, 1835).

Figures

Figure 67. Kuschelenia species. A-B, K Kuschelenia (Kuschelenia) culminea culminea (d'Orbigny, 1835), paralectotype of Helix lithoica d'Orbigny, 1835 NHMUK 1854.12.4.197 (H = 34.3) C-D, L Kuschelenia (Kuschelenia) culminea edwardsi (Morelet, 1863), syntype NHMUK 1893.2.4.177 (H = 25.4) E-G, M Kuschelenia (Kuschelenia) gayi (Pfeiffer, 1857) E-F lectotype NHMUK 1975382 (H = 27.7) G syntype of Helix thamnoica var. C d'Orbigny, 1835 NHMUK 1854.12.4.110 (H = 32.2) H-J Kuschelenia (Kuschelenia) bicolor (Sowerby I, 1835) H-I lectotype resp. paralectotype of Helix polymorpha d'Orbigny, 1835 NHMUK 1854.12.4.199 (H = 23.6 resp. 21.2) J possible syntype of Bulinus badius Sowerby I 1835 NHMUK 20100631 (H = 25.8). All enlarged.

Figure L 48. Labels. i Helix polymorpha d'Orbigny, 1835 ii Drymaeus ponsonbyi da Costa, 1907 iii Bulimus praetextus Reeve, 1849 iv Drymaeus prestoni da Costa, 1906 v Bulimus primula Reeve, 1848 vi Bulinus pruinosus Sowerby I, 1833 vii Bulimus protractus Pfeiffer, 1855.