Drymaeus ponsonbyi da Costa, 1907

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 : 128

Drymaeus ponsonbyi da Costa, 1907 Figs 54H , L48ii

Drymaeus ponsonbyi da Costa 1907: 305, pl. 26 figs 6-6a; Breure 1979: 113.

Type locality.

"Surco, Peru, at an elevation of 2,050 metres".

Label.

"Surco 2050 M. / Peru", in da Costa’s handwriting.

Dimensions.

"Long. 33, diam. 12 mm."; figured specimen herein H 33.5, D 12.82, W 8.0.

Type material.

NHMUK 1907.11.21.27, holotype (ex da Costa).

Remarks.

da Costa writes "a shell", implying that he had only one specimen; thus the specimen is the holotype. Searching for ”Surco” in modern gazetteers for Peru does not give any locality at the elevation indicated; the type locality thus remains to be ascertained.

Current systematic position.

Bulimulidae , Drymaeus ponsonbyi da Costa, 1907.

Figures

Figure 54. Drymaeus species. A-B Drymaeus (Drymaeus) expansus perenensis da Costa, 1901, lectotype NHMUK 1907.11.21.39 (H = 45.8) C-D Drymaeus (Mesembrinus) ghiesbreghti iodostylus (Pfeiffer, 1861), syntype NHMUK 1975568 (H = 32.2) E Drymaeus (Drymaeus) trujillensis (Philippi, 1867), possible syntype of Bulimus (Otostomus) lamas Higgins, 1868 NHMUK 1868.4.3.3 (H = 29.2) F Drymaeus (Drymaeus) rubrovariegatus (Higgins, 1868), possible syntype NHMUK 1868.4.3.1 (H = 32.8) G Drymaeus (Drymaeus) pergracilis (Rolle, 1904), lectotype NHMUK 1922.2.3.33 (H = 33.2) H Drymaeus (Drymaeus) ponsonbyi da Costa, 1907, holotype NHMUK 1907.11.21.27 (H = 33.5) I Drymaeus (Mesembrinus) moritinctus (Martens, 1893), lectotype NHMUK 1901.6.22.841 (H = 25.2) J-K Drymaeus (Mesembrinus) recluzianus (Pfeiffer, 1847), lectotype of Bulimulus (Drymaeus) nubilus Preston, 1903 NHMUK 1903.5.4.1 (H = 22.3) L-M Drymaeus (Mesembrinus) oreades (d'Orbigny, 1835) L sculpture on ultimate whorl M lectotype NHMUK 1854.121.4.161 (H = 31.6). 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.