Orthalicus isabellinus Martens, 1873

Breure, Abraham S. H., 2013, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda) in the Museum fuer Naturkunde, Berlin, ZooKeys 279, pp. 1-101 : 22

Orthalicus isabellinus Martens, 1873 Figs 22G-H, 22iv

Orthalicus isabellinus Martens 1873: 190, pl. 1 fig. 8; Pilsbry 1899: 142, pl. 31 fig. 66.

Zebra fischeri Martens; Strebel 1909: 27, 29, pl. 3 figs 33-34, 37.

Type locality.

“Peru”.

Label.

“Peru”.

Dimensions.

"Long. 49, diam. 23 1/2 (...) Millim."; figured specimen herein H 37.0, D 23.6, W 5.9.

Type material.

ZMB 8876, two syntypes; ex Neuchatel Museum, Tschudi leg.

Remarks.

Martens writes "von Tschudi gesammelt, in der Albers’schen Sammlung: mehrere Exemplare vom Neuchateler Museum für das Berliner erhalten". Two subadult specimens, not corresponding to the original measurements; it may be possible that one or more specimens have been lost. There are no labels in the handwriting of neither Albers nor Martens, but the type status is herein not disputed. One of the shells corresponds to the figure given by Martens (1873: pl. 1 fig. 8), of which Strebel (1909: 29) remarked "nicht gerade sehr characteristisch"; this shell was refigured in his pl. 3 figs 33-34 and attributed to the Guatemalan taxon Orthalicus princeps fischeri Martens, 1893. However, assuming that the locality is correct, we cannot agree with Strebel’s re-identification and assign this taxon to Orthalicus bensoni (Reeve, 1849) (syn. n.).

Current systematic position.

Orthalicidae , Orthalicus bensoni (Reeve, 1849).

Figures

Figure 22. Orthalicus species A-B, i Orthalicus maracaibensis (Pfeiffer, 1856), syntype of Zebra maracaibensis jamaicensis Strebel, 1909 ZMB 21848 a (H = 54.9) C-D, ii Orthalicus ferussaci ferrusaci Martens, 1864, syntype ZMB 4599 (H = 39.5) E-F, iii Orthalicus ferussaci tricinctus Martens, 1893, lectotype ZMB 101828 (H = 48.1) G-H, iv Orthalicus bensoni (Reeve, 1849), syntype of Orthalicus isabellinus Martens, 1873 ZMB 8876 (H = 37.0).