Bulimus mexicanus Lamarck, 1822

Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 74-75

Bulimus mexicanus Lamarck, 1822

Fig. 54

Bulimus mexicanus Lamarck, 1822: 123 . – Delessert, 1841: pl. 27 figs 9a-b. – Chenu, 1850 [1842-1854]: pl. 8 figs 1a-b. – Mermod, 1951: 730, fig. 80.

Type locality: “le Mexique ”, see remarks.

Label: No locality given.

Dimensions: “Longueur, 14 lignes [H = 31.1 mm]”; figured specimen herein H 30.9, D 17.2, W 6.2.

Type material: MHNG-INVE-51166 , two syntypes (Lamarck coll.).

Remarks: Lamarck used material collected by Humboldt and Bonpland, but did not state how many specimens he examined. Mermod (1951) confirmed that the protoconch sculpture is characteristic for Drymaeus and repeated the opinion of earlier authors (e.g. Pilsbry, 1898 [1897-1898]: 292) that is taxon is in fact a species from northern Peru. The material has no taxon label in Lamarck’s hand, but the type status of the material is not disputed herein.

Current systematic position: Bulimulidae , Drymaeus (Drymaeus) mexicanus ( Lamarck, 1822) .

Figures

Figs 42-65. Bulimulidae. (42) Bulimulus heloicus (d’Orbigny, 1835), syntype, MHNG-INVE-79903 (H = 22.4). (43) Bulimulus unicolor (Sowerby I, 1833), paralectotype of Bulimus petenensis Morelet, 1851, MHNG-INVE-60291 (H = 16.2). (44) Cochlorina aurismuris (Moricand, 1838), syntype, MHNG-INVE-60683 (H = 31.5). (45-46) Drymaeus (Drymaeus) abyssorum (d’Orbigny, 1835), respectively paralectotype of Helix abyssorum d’Orbigny, 1835, MHNG-INVE-63420 (H = 46.9), and paralectotype of Helix hygrohylaea d’Orbigny, 1835, MHNG-INVE-63469 (H = 43.9). (47-50) Drymaeus (Drymaeus) strigatus (Sowerby I, 1833), (47-48) syntype of Bulimus mariae J. Moricand, 1858, MHNG-INVE-64389 (H = 23.3), (49) syntype of Bulimus ceciliae J. Moricand, 1858, MHNG-INVE-63436 (H = 22.3), (50) syntype of Bulimus delphinae J. Moricand, 1858, MHNG-INVE-63443 (H = 22.4). (51) Drymaeus (Drymaeus) similaris (J. Moricand, 1856), syntype, MHNG-INVE-63531 (H = 23.6). (52) Drymaeus (Drymaeus) sachsei (Albers, 1854), syntype, MHNG- INVE-63524 (H = 31.9). (53) Drymaeus (Drymaeus) poecilus (d’Orbigny, 1835), paralectotype, MHNG-INVE-63506 (H = 26.8). (54) Drymaeus (Drymaeus) mexicanus (Lamarck, 1822), syntype, MHNG-INVE-51166 (H = 30.9). (55) Drymaeus (Drymaeus) draparnaudi (Pfeiffer, 1847), paralectotype of Helix torallyi d’Orbigny, 1835 [partim], MHNG- INVE-60326 (H = 24.9). (56-58) Drymaeus (Mesembrinus) virgulatus (Férussac, 1821), syntypes of Bulimus caribaeorum Lamarck, 1822, MHNG-INVE-51169 (H = 26.0).(59) Drymaeus (Mesembrinus) oreades (d’Orbigny,1835), paralectotype, MHNG-INVE-64483 (H = 31.4). (60-61) Drymaeus (Mesembrinus) fragilis (Lamarck, 1822), syntype (H = 28.3). (62) Drymaeus (Mesembrinus) immaculatus (C.B. Adams in Reeve, 1850), paralectotype, MHNG-INVE-64442 (H = 29.7). (63) Drymaeus (Mesembrinus) multilineatus (Say, 1825), paralectotype of Bulimus sisalensis Morelet, 1849, MHNG- INVE-64471 (H = 21.4). (64) Drymaeus (Mesembrinus) tropicalis (Morelet, 1849), paralectotype, MHNG-INVE-64519 (H = 24.3). (65) Drymaeus (Mesembrinus) leucomelas (Albers, 1854), paralectotype, MHNG-INVE-64455 (H = 25.9). ►