Orthalicus (Laeorthalicus) reginaeformis Strebel, 1909

Breure, Abraham S. H., 2013, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda) in the Museum fuer Naturkunde, Berlin, ZooKeys 279, pp. 1-101 : 39-40

Orthalicus (Laeorthalicus) reginaeformis Strebel, 1909 Figs 18C-D, 18ii

Orthalicus (Laeorthalicus) reginaeformis Strebel 1909: 180, pl. 22 figs 353a-c.

Sultana (Laeorthalicus) reginaeformis ; Zilch 1960: 513, fig. 1794.

Type locality.

[Brazil?] "Rio Branco".

Label.

"Rio Branco", with a second, taxon label in Strebel’s handwriting.

Dimensions.

"51,3 × (19,6)23,0 [H × (Dmin)Dmax in mm]"; figured specimen herein H 46.9, D 22.7, W 7.2.

Type material.

ZMB 101824, holotype; ex Staudinger.

Remarks.

Strebel had a single shell ("das sich im Berliner Museum (...) befindet"), thus this is the holotype although the shell height does not correspond to Strebel’s data; the shell, however, fits his figure very well. It is not known where Staudinger collected this shell, but Brazil is likely given the many localities 'Rio Branco’ in gazetteers; cf. also Schieleyko (1999: 359), who attributes this species to a specimen found in Brazil, Edo. Amazonas, Tabatinga. His classification of Laeorthalicus as a separate genus is herein considered as erroneous; left- and right handed specimens may occur in the same population of Orthalicid species (Breure, unpublished data; Simone 2006: fig. 543), and the description of a separate subgenus for the single, somewhat subadult, sinistral shell by Strebel may be interpreted as premature.

This taxon is now placed within the genus Corona , which species list badly needs a revision; the current systematic position is therefore a provisional one.

Current systematic position.

Orthalicidae , Corona perversa (Swainson, 1821) (comb. n., syn. n.).

Figures

Figure 18. A-D Corona species A-B, i Corona pfeifferi (Hidalgo, 1869), syntype of Corona pfeifferi cincta Strebel, 1909 ZMB 101856 (H = 55.0) C-D, ii Corona perversa (Swainson, 1821), holotype of Orthalicus (Laeorthalicus) reginaeformis Strebel, 1909 ZMB 101824 (H = 46.9) E-H Hemibulimus species E-F, iii Hemibulimus excisus (Martens, 1885), holotype ZMB 101837 (H = 43.1) G-H, iv Hemibulimus dennisoni (Reeve, 1848), probable syntype of Porphyrobaphe (Myiorthalicus) dennisoni pallida Strebel, 1909 ZMB 117782 (H = 55.0).