Bulimus maranhonensis Albers, 1854

Breure, Abraham S. H., 2013, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda) in the Museum fuer Naturkunde, Berlin, ZooKeys 279, pp. 1-101 : 30

Bulimus maranhonensis Albers, 1854 Figs 28C-E, 28ii

Bulimus maranhonensis Albers 1854: 216; Pfeiffer 1855 [1854-1860]: 42, pl. 11 figs 11-12.

Orthalicus maranhonensis ; Pilsbry 1899: 198, pl. 41 figs 3-4.

Type locality.

"in Columbia ad fluvium Maranhon".

Label.

"Columbia / ad fluvium Maranhon", in Albers’ handwriting.

Dimensions.

"Long. 76, diam. 30 mill."; figured specimen herein H 75.6, D 36.8, W 6+.

Type material.

ZMB 101825, lectotype; ex Albers coll. No. 545. ZMB 111927, one (juvenile) paralectotype; ex Albers coll. No. 471, both Warszewicz leg. See remarks.

Remarks.

Albers did not state on how many specimens his description was based. The largest specimen found (ZMB 101825) has the top damaged and a label ‘545’ glued on the last whorl behind the lip. This specimen is here designated lectotype (design. n.) to define this still ill-understood taxon. One specimen from the Paetel collection (ZMB 101826) is labelled “Maranhon”, without further data; there is no evidence that this specimen has been part of the original series and therefore it is not considered type material. This taxon is tentatively retained as a valid species.

Current systematic position.

Orthalicidae , Sultana (Metorthalicus) maranhonensis (Albers, 1854).

Figures

Figure 28. Sultana (Metorthalicus) species. A-B, i Sultana (Metorthalicus) meobambensis (Pfeiffer, 1855), holotype of Orthalicus meobambensis carnea Strebel, 1909 ZMB 101823 (H = 68.7) C-E, ii Sultana (Metorthalicus) maranhonensis (Albers, 1854), lectotype ZMB 101825 (H = 75.6).