Helix hygrohylaea 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 : 73

Helix hygrohylaea d'Orbigny, 1835 Figs 27D-F , L27iv

Helix hygrohylaea d’Orbigny 1835: 18.

Bulimus hygrohylaeus d’Orbigny 1837 [1834-1847]: 311, pl. 40 figs 3-5 [18 Sept. 1837; text 6 May 1838]; Gray 1854: 21.

Drymaeus hygrohylaeus ; Pilsbry 1898 [1897-1898]: 194, pl. 37 figs 9-10; Breure 1975b: 1151; Cuezzo et al. 2013: 154.

Drymaeus (Drymaeus) hygrohylaeus ; Miquel 1989b: 77, figs 3-4.

Type locality.

"provincia Chiquitensi (republica Boliviana)".

Label.

Three labels, "Sta Cruz de la sierra, Bolivia" [.126], "guarayos, Bolivia" [.127], "chiquitos, Bolivia" [.128]; all in d’Orbigny’s handwriting.

Dimensions.

"Longit. 41 millim., latit. 19 millim."; figured specimen herein H 40.4, D 19, W 6.7.

Type material.

NHMUK 1854.12.4.127, lectotype and five paralectotypes; 1854.12.4.126, four paralectotypes; 1854.12.4.128, two paralectotypes.

Remarks.

The specimen that corresponds to the original figure of d’Orbigny 1837 [1834-1847], is now chosen as lectotype (design. n.) to fixate this taxon. The locality ”guarayos” probably refers to Guarayos Province, in the northwestern part of Santa Cruz Department; see also Breure 1973: 117. It is here restricted as type locality. There are two additional paralectotypes in Paris ( Breure 1975b: 1151). The current systematic position follows the synonymisation of this taxon with Helix abyssorum d’Orbigny, 1835, by Miquel (1989b: 77); this author, however, overlooked that the latter name has page priority. Cuezzo et al. (2013), however, disagreed with Miquel’s classification; this is here tentatively retained awaiting further studies on the position of both taxa.

Current systematic position.

Bulimulidae , Drymaeus (Drymaeus) abyssorum ( 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 27. Labels. i Bulimus hondurasanus Pfeiffer, 1846 ii Bulimus huascensis Reeve, 1848 iii Bulimus humboldtii Reeve, 1849 iv Helix hygrohylaea d'Orbigny, 1835 v Otostomus emeus hypozonus Martens, 1893 vi Bulimus ignavus Reeve, 1849.