Bulimus marmoratus Dunker in Philippi, 1844

Breure, Abraham S. H. & Ablett, Jonathan D., 2011, Annotated type catalogue of the Amphibulimidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 138, pp. 1-52 : 18

Bulimus marmoratus Dunker in Philippi, 1844 Figs 9A-B, 9i

Bulimus marmoratus Dunker in Philippi 1844 [1842-1844]: 157, pl. 2 figs 1-2.

Dryptus marmoratus (Dunker); Breure 1978: 26 (lectotype designation); Breure 1979: 34; Borrero and Breure 2011: 9.

Type locality.

“Brasilia” [sic, Venezuela].

Label.

“Venezuela”, label in Dunker's handwriting. M.C. label type IV.

Dimensions.

"Alt. 46''', diam. 26''' [H 100.3, D 56.7 mm]"; lectotype H 86.1, D 46.2, W 5.4.

Type material.

NHM 1975474, lectotype, ex Dunker (Cuming coll.).

Remarks.

The type locality as given in Philippi (1842-1844) is in error, as this species is only known from Venezuela. Apparently Dunker had seen three specimens, as he writes "I owe the figured specimen to the kindness of Consul Mr. Gruner from Bremen, in whose collection there are two additional, identical specimens". According to Dance (1966) the Dunker collection is in Berlin, with many types in the Cuming collection. The whereabouts of the Gruner collection are unknown to us. Köhler (2007) does not list any type material of this taxon, hence the Cuming collection seem to be the only extant source of material originating from Dunker. The type status of the London specimen is not questioned as it is accompanied by a label in Dunker's handwriting. The specimen, which was chosen lectotype by Breure (1978), is considerably smaller than the original dimensions and does not fit the figure in Philippi (1842-1844).

Current systematic position.

Amphibulimidae , Dryptus marmoratus (Dunker in Philippi, 1844).

Figures

Figure 9. A-B, i Dryptus marmoratus (Dunker, 1844), lectotype NHM 1975474 (H = 86.1).