Helix xanthostoma 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 : 175

Helix xanthostoma d'Orbigny, 1835 Figs 27J-L , L65iii

Helix xanthostoma d’Orbigny 1835: 18.

Bulimus xanthostomus d’Orbigny 1837 [1834-1847]: 312, pl. 40 figs 1-2 [18 Sept. 1837; text 6 May 1838]; Gray 1854: 21.

Drymaeus xanthostomus ; Pilsbry 1898 [1897-1898]: 196, pl. 36 figs 52-53; Breure 1975b: 1153, pl. 2 fig. 6 (lectotype designation).

Type locality.

"provincia Yungacensi (republica Boliviana)".

Label.

"Carcuata, Yungas, Bolivia", in d’Orbigny’s handwriting.

Dimensions.

"Longit. 46 millim., latit. 17 millim."; figured specimen herein H 43.8, D 19.0, W 6.8.

Type material.

NHMUK 1854.12.4.221, seven paralectotypes ( d’Orbigny coll.).

Remarks.

d’Orbigny (1835) did not state on how many specimens his description was based. In d’Orbigny 1838 [1834-1847]: 312 he specified the locality as "seulement sur le coteau qui sépare les villages de Circuata et de Carcuata"; see Breure 1973: 133, fig. 7. Breure (1975b) found five specimens in the MNHN collection, labelled "Carcuata Yas", of which he selected one as lectotype. One of the specimens in lot 1854.12.4.221 corresponds to d’Orbigny 1837 [1834-1847]: pl. 40 figs 1-2; one of the other specimens is a fragment only.

Current systematic position.

Bulimulidae , Drymaeus (Drymaeus) xanthostomus ( d’Orbigny, 1835).

Figures

Figure 27. Drymaeus species. A-F Drymaeus (Drymaeus) abyssorum (d'Orbigny, 1835) A-C Paralectotype of Helix abyssorum d'Orbigny, 1835, NHMUK 1854.12.4.125 (H = 43.7) D-F lectotype of Helix hygrohylaea d'Orbigny, 1835, NHMUK 1854.12.4.127 (H = 40.4) G-I Drymaeus (Drymaeus) marmarinus (d'Orbigny, 1835), lectotype NHMUK 1854.12.4.129 (H = 37.9) J-L Drymaeus (Drymaeus) xanthostomus (d'Orbigny, 1835), paralectotype NHMUK 1854.12.4.221 (H = 43.8). All enlarged.

Figure L 65. Labels. i Bulimus virginalis Pfeiffer, 1856 ii Bulimus virgultorum Morelet, 1863 iii Drymaeus wintlei Finch, 1929 iv Bulimulus (Naesiotus) wolfi Reibisch, 1892 v Bulimus voithianus Pfeiffer, 1847.